>A wild guess -- perhaps the time and date on the workstation are off by a large enough amount that it's playing havoc with autnetication? I've seen on more than one situation where on a computer a person was getting all sorts of warnings with certifications being expired or not being activated yet. After a bit of futzing around to correct the problem, I'd noticed the date & time were off. Trying to synch up with time server wouldn't work. Manually updating the date and time finally corrected both the certificate issues as well as the time resynch.

Interesting