Hi All,
Heres a strange problem for you.
My system
Asus m4a78lt-m
AMD x555 Black edition
Kingston 2GB DDR3 1600MHz HyperX Memory 1.65V Non-ECC CL9 KHX1600C9AD3/2G
Nvidea 6600GT (upgrading soon)
Built system instaled Vista Ultimate worked fine (apart from Code 10 error on my USB mouse)...