Uh Oh... seen this a few times. sometimes can be solved be installing/reinstalling the latest service pack, otherwise windows is all screwy. Reinstall is in order but not necessarily afull reinstall. Try this from the AT FAQs
- Reportedly, Windows 2000 and XP can be tricked into doing this stuff for you. The procedure is this: Shut down, install your new hardware, power on, and enter your system BIOS. Make sure your First Boot Device is set to CDROM. Insert the Windows 2000/XP setup CD and boot from this disk. (You may have to "press a key to boot from CD" as the prompt says.) Skip the initial prompt asking to repair your existing installation. Then proceed to the screen where you select a partition, and choose your existing Windows partition. Setup will detect your existing installation and ask you to repair. Say yes. When Windows Setup is complete, you should have a fully working installation with all your old user and application profiles. Everything should be intact, except your hardware and driver settings, leaving it fresh for your new motherboard.
Subject is for changing a motherboard but can also be used for hardware that refuses to work (since this procedure copletely redoes the Hardware drivers). After install is complete just redo SP3 and and new graphics, sound drivers etc... and you are set. No need to reinstall any apps as this procedure only affects the hardware registry entries.