Can't see your network card inside Virtual Server 2005 R2?
Today we ran into an issue where Virtual Server 2005 R2 wasn't seeing the correct NIC (there are 2) on a specific box. As it turns out, in the properties for any given NIC in Windows where Virtaul Server 2005 R2 is installed there is a check box for:
Virtual Machine Network Services
This happens to be what determines whether Virtual Server 2005 R2 can see a NIC or not.