You receive a Stop error when you click the arrow to scroll down an application pop-up menu on a Windows Server 2003 SP1 or SP2-based computer

On a computer that is running Windows Server 2003 Service Pack 1 (SP1) or Service Pack 2 (SP2), you click the arrow to scroll down an application pop-up menu. When you reach the last command on the menu, the arrow becomes dimmed. If you then move the mouse between the border of the last command and the dimmed arrow, Windows Server 2003 may crash. Additionally, you receive the following Stop error:If you use the debugging tools for Windows to analyze the crash dump file, you may see that it crashes at the win32k!MNItemHitTest point.

An example of a pop-up menu that has an arrow

1. Open Internet Explorer.
2. Right-click anywhere on the page, and then point to Encoding.
3. Point to More, and a pop-up menu that has a down arrow appears.
   
   Note The down arrow appears only if some commands on the menu cannot be displayed on the screen.

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may 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.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

To apply this hotfix, you must be running Windows Server 2003 SP1 or Windows Server 2003 SP2 on the computer.

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 Server 2003 with Service Pack 1, x86-based versions

Windows Server 2003 with Service Pack 1, x64-based versions

Windows Server 2003 with Service Pack 1, Itanium-based versions

Windows Server 2003 with Service Pack 2, x86-based versions

Windows Server 2003 with Service Pack 2, x64-based versions

Windows Server 2003 with Service Pack 2, Itanium-based versions

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

For more information about the debugging tools for Windows, visit the following Microsoft Web site: For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: -