Windows Vista RC1 crashes with a critical error when accessing AD domain

Please help, in testing vista RC1 on our AD domain, when connected, accessing any network resource causes Vista to become unstable and it throws a critical error and must restart. If I take it off the network, it is fine other than its own programs crashing here and there. This is a clean install and we have tried it pre staged in AD and not prestaged. We have installed this on multiple systems and they all do the same thing. Anyone experience this? Any Ideas?

[479 byte] By [serverman] at [2007-12-24]