Adding more than one acct can't switch back and forth

This has something to do with your different users display settings, one
user has a different display to the other for example. When they switch back
the monitor has to adjust itself in a matter of milliseconds, forcing this
change to happen to quickly results in this error. All it means is that your
monitor cannot refresh quick enough to display without possible damage and
so it does this. If possible, you could try switching the monitor off and on
again.
Hope this helps.
"Bunny" <Bunny@discussions.microsoft.com> wrote in message
news:9B500965-FEF7-4362-B37F-EBCBB3F6D6E1@microsoft.com...

> When logged on to user 1 then switch to user 2, when I switch back to user
> 1
> error message states: H: 31 54KHZ, V: 50 120HZ, PC display settings
> correct?
> and screen goes black. How do I fix this problem?