Article ID: 2589402 - View products that this article applies to.
Drop-down lists and certain form controls appear fuzzy when the zoom setting is not 100 percent in Microsoft Excel 2010.
To resolve this issue, apply the following update:
(http://support.microsoft.com/kb/2596500/ )Description of the Office 2010 hotfix package (Oart-x-none.msp): October 25, 2011
Registry key informationImportant This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756To have us enable the hotfix for you after you install the hotfix package, go to the "Fix it for me" section. If you prefer to enable the hotfix yourself, go to the "Let me fix it myself" section.
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
Fix it for me
To enable the hotfix automatically, click the Fix it button or link. Then click Run in the File Download dialog box, and follow the steps in the Fix it wizard.
Enable the hotfix
Microsoft Fix it 50788
Then, go to the "Did this fix the problem?" section.
Let me fix it myselfFollow these steps to enable the hotfix:
Did this fix the problem?
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.