Can't use Fast User Switching

I'm using Win XP Pro, and have a wireless internet system (Cisco)4800. And after the last update from Cisco I've been unable to use Fast User Switching. "A recently installed program has disabled the welcome screen and Fast user Switching. To restore these features, you must uninstall the program. The following file name might help you identify the program that made the change: cswGina.dll"

I hope some can help me be able to use Fast User Switching.

Thanks for any help
Rod M

I would check the release notes to see what extra features the new client software gives you. If you don't need them you can restore use of the original msgina.dll by editing the registry (or renaming files) or using a script.

Let me first say! I'm sorry for not coming here First!
I talked to Cisco and they were no help. And neither was my ISP,
"I got the update from them".
Oh yeah, it works:)

Thanks
Rod M