When installing Windowsw Vista beta two, it copies the files, gives the grey loading bar, I then get the background picture before a BSOD "Machine Check Exception" about 5 seconds later. I have tried both 64 and 32 bit versions, upgrading from windows XP (Does everything ok in windows but when it restarts and gets to the same place as booting from the dvd). I'm tried removing everything possible attached to the computer and removing\disabling internal devices but with no change. Any ideas? Thanks