Win 2k - Repeated file corruption

Hi,

Recently upgraded my computer

Abit NF7 - S
XP2400
512 crucial PC2700
Maxtor 80GB

I'm installing windows 2000, and all is fine for the first few boot ups, but eventually on booting up, windows will complain about not being able to find a system file...

C:\WINNT\system32\config\system

the "repair" option never works and I have to install windows again. This has happened numerous times now, really getting annoying

Anybody any ideas?

Rob