login error

The guy I work with is having a problem with XP. We just started using XP about 2 weeks ago. Until then we were using Windows 200 Pro.

He installed XP Pro on his comp (format..) and has been using it fine. Today after a random reboot (nothing specific changed about the computer - no new installations or anything like that) and during the login process he gets an error message saying "A problem has prevented Windows from accurately checking the license krom
this
machine. Error Code: 0x80004005."

Have any of you experienced this?

Thanks,
Rafi

I found this on MS site speaking of your exact problem but on Dell computers. Still might help!
<a href="http://support.microsoft.com/default.aspx?scid=kb;en-us;Q310794" target="_blank">http://support.microsoft.com/default.aspx?scid=kb;en-us;Q310794</a>