On a Windows Vista-based computer that has the "Auto-hide the taskbar" option enabled, most of the taskbar does not appear when you move the mouse pointer into the taskbar area

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Article ID: 958908 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You enable the Windows Aero color scheme on a computer that runs Windows Vista.
  • You enable the Auto-hide the taskbar option.
  • You configure system display to use multiple monitors, and then you later you switch the system display back to a single monitor.
  • You move the mouse pointer into the taskbar area.
In this scenario, only the Start button appears. The rest of the taskbar is invisible.

RESOLUTION

Hotfix information

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix on a Windows Vista-based computer, you must have Windows Vista Service Pack 1 installed on the computer. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista and Windows Server 2008 file information notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.0.6000.16xxxWindows VistaRTMGDR
    6.0.6000.20xxxWindows VistaRTMLDR
    6.0.6001.18xxxWindows Vista SP1 and Windows Server 2008 SP1SP1GDR
    6.0.6001.22xxxWindows Vista SP1 and Windows Server 2008 SP1SP1LDR
  • The MANIFEST files (.manifest) and MUM files (.mum) installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Win32k.sys6.0.6001.222902,033,15218-Oct-200801:04x86
For all supported x64-based versions of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Win32k.sys6.0.6001.222902,743,29620-Oct-200809:26x64

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information for Windows Vista

Additional files for all supported x86-based versions of Windows Vista

Collapse this tableExpand this table
File namePackage_1_for_kb958908~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,774
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_2_for_kb958908~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,941
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_3_for_kb958908~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,779
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_4_for_kb958908~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,779
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,367
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_client~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,431
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,421
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_sc~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,423
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,425
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_server~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,431
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_winpesrv_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,422
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_winpesrv~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File nameX86_bb05afdedb361cdb4f995ae28ae31660_31bf3856ad364e35_6.0.6001.22290_none_9a4a1334d1aca134.manifest
File versionNot Applicable
File size694
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File nameX86_microsoft-windows-win32k_31bf3856ad364e35_6.0.6001.22290_none_b91bc91fb3ed622a.manifest
File versionNot Applicable
File size6,543
Date (UTC)18-Oct-2008
Time (UTC)04:08
PlatformNot Applicable

Additional files for all supported x64-based versions of Windows Vista

Collapse this tableExpand this table
File nameAmd64_04d5dd912423262fbefadd2d4ab1a26c_31bf3856ad364e35_6.0.6001.22290_none_c9a1a49f50570599.manifest
File versionNot Applicable
File size698
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File nameAmd64_6667d16409fa5c41e89205cf62c7b704_31bf3856ad364e35_6.0.6001.22290_none_5644bf2294ae5fa9.manifest
File versionNot Applicable
File size1,038
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File nameAmd64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6001.22290_none_153a64a36c4ad360.manifest
File versionNot Applicable
File size6,559
Date (UTC)20-Oct-2008
Time (UTC)13:14
PlatformNot Applicable
File namePackage_1_for_kb958908~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,784
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_2_for_kb958908~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,167
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_3_for_kb958908~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,003
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_4_for_kb958908~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,003
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,375
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_client~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,439
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,431
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,433
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_server~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,439
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_winpesrv_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,430
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File namePackage_for_kb958908_winpesrv~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,437
Date (UTC)20-Oct-2008
Time (UTC)17:41
PlatformNot Applicable
File nameWow64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6001.22290_none_1f8f0ef5a0ab955b.manifest
File versionNot Applicable
File size5,013
Date (UTC)18-Oct-2008
Time (UTC)03:59
PlatformNot Applicable

Properties

Article ID: 958908 - Last Review: October 8, 2011 - Revision: 2.0
APPLIES TO
  • Windows Vista Home Premium
  • Windows Vista Ultimate
  • Windows Vista Enterprise
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Enterprise 64-bit Edition
Keywords: 
kbautohotfix kbexpertisebeginner kbsurveynew kbbug kbfix kbqfe KB958908

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