I went through the usual horrors and headaches of Vista, but in truth, the issues are now all pretty much gone and ocne you have SP2 on, I really dont thin kthere is any reason to blame it anymore.
I have not bothered to upgrade my Server since thats running Vista64Prem just fine.
I think that its down to User / Hardware too.
( oops - pressed send too soon )
Anyway, when you install, have you sent the Motherboard to SETUP DEFAULTS and have you installed to a nice clean Partition?
Not doing the SETUP DEFAULTS can do all sorts of icky stuff that may or may not rear its ugly head.