Read the replies from the following thread. In addition, is fast user switching working in Safe Mode ?
Trying to unweave, unwind, unravel
And piece together the past and the future,
T. S. Eliot
When two or more accounts are logged in, if I try to switch user, a lot of
times I'll get the message "Windows cannot switch accounts. Please try
switching again. If this message continues to appear, you will need to
restart you computer." After several attempts it will finally let me switch
accounts without rebooting. I'm using WinXP Pro 2.8 GHz with 1GHz of RAM with
65% of it free. CPU usage is a mere 0.50%. If only one account at a time is
logged on no error messages appear.