You Receive a "Stop 0x50" Error Message When Switching Between Users While You Play a Video

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Article ID: 822043 - View products that this article applies to.
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Symptoms

When you use the Fast User Switching feature to switch between users while you play a video in Windows XP Media Center Edition, your computer may stop responding, and you may receive a Stop error message on a blue screen that is similar to the following message:
Stop 0x50 in Nv4_disp.dll

PAGE_FAULT_IN_NONPAGED_AREA

Cause

This problem may occur if you have an NVIDIA video adapter installed on your computer.

Resolution

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to obtain the latest Windows XP service pack

Hotfix information

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 this specific problem. 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.

The English version of this fix has the file attributes (or later) 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 tool in Control Panel.
   Date         Time   Version        Size    File name
   ----------------------------------------------------
   13-Jul-2003  18:54  5.1.2600.1245  69,120  Dxg.sys
				

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows XP Service Pack 2.

More information

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Properties

Article ID: 822043 - Last Review: December 26, 2014 - Revision: 3.0
Applies to
  • Microsoft Windows XP Media Center Edition 2005 Update Rollup 2
Keywords: 
kbnosurvey kbarchive kbautohotfix kbhotfixserver kbqfe kbwinxpsp2fix kbwinxppresp2fix kbfix kbbug KB822043

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