This article was previously published under Q146440
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Your screen saver may not start, even though your computer has beeninactive for the specified amount of time.
This behavior can be caused by any of the following conditions:
A key or mouse button is being held down.
A menu (such as the Start menu) is active. NOTE: This item does not apply to Windows 98 or Windows Me.
A "system modal" dialog box is active. A "system modal" dialog box is one that requires user input before the system will continue. NOTE: This item does not apply to Windows 98 or Windows Me.
The active program is an MS-DOS-based program for which the Allow Screen Saver property has been disabled.
The active program is an MS-DOS-based program that is using a high- resolution graphics mode or high-resolution text mode, or is a disk utility. For additional information, please see the following article in the Microsoft Knowledge Base:
ARTICLE-ID: 139473 TITLE : Cannot Switch Away from Full-Screen MS-DOS-Based Program
To resolve this problem, use the appropriate method:
Release the key or mouse button.
Close the menu.
Respond to the "system modal" dialog box.
In the MS-DOS-based program's properties, click the Misc tab, and then click the Allow Screen Saver check box to select it.
Quit the program that is preventing the screen saver from running.