Problem Switching Users

[Guest]

Problem started not too long ago. Turn on PC and choose my user. Logs in
fine. Click on Start>Log Off>Switch User and choose another user and it
switches to the other user just fine. Then follow same method to switch back
to my user and I get a black screen with teh following message "Cannot
display this video mode". Have to do hard shut down. Any ideas? Thanks

 

[Sharon F]

Problem started not too long ago. Turn on PC and choose my user. Logs in
fine. Click on Start>Log Off>Switch User and choose another user and it
switches to the other user just fine. Then follow same method to switch back
to my user and I get a black screen with teh following message "Cannot
display this video mode". Have to do hard shut down. Any ideas? Thanks

This article seems to match your description well:
Logging off or restarting the computer after switching users may cause
Windows XP to stop responding
http://support.microsoft.com/kb/872789/en-us

However be aware that some programs and some hardware is just not
compatible with Fast User Switching. What worked yesterday, may not work
the next day if there was an update or other change to the operating
system, programs being used or hardware drivers.