lwolfThis doesn't help either of you, but I will mention that we just went through a nightmare scenerio with a client and the Symantec Endpoint Protection software (SEP) v11 software on an SBS2008 server for a client. It kept locking up their server every afternoon. Aftering trying 5 or 6 other things, we uninstalled SEP. The problem immediately went away and the server was fine for 6 weeks. We re-installed SEP, and the problem returned the very next day.
We have SEP on about 150 servers and about 1800 desktops/laptops. About 10 of those servers running SBS2008 - all DELL PowerEdge 2900 servers, all the same SEP software, Backup Exec software, APC software, etc. All installed and configured the same way, per our company checklists.
We could not figure out what was causing the problem, what was different in this case. We have since uninstalled SEP and installed AVG/KES. That server has been running fine for a week now.
So, it seems that all antivirus software programs can sometimes cause unexplained issues, when it works fine elsewhere.
One thing is for sure, each of them is a nightmare to work on when it happens.
WingSwept SupportUpdating to SEP, MR4 MP2 (11.0.4202.75) seems to have fixed the issue for them.