celeb: This is probably too late but I'll post it any way.......
There is a very good argument for format/fresh install, that would be my first choice. Of course the other side is not having to reload apps and restore backed up data. Here's a good alternative assuming you are running XP.....
After installing the new MB, boot to bios and load default settings, then point to the CD as first boot device.
Boot to your XP disk and choose the second repair option (ignore your first prompt to repair using the console). XP will search the drive for a previous install and prompt you to repair that installation. Continue with the repair option and XP will load the appropriate drivers to get the system running. Once you're up and running, insert you MB driver disk and follow the prompts.
Of course when that's complete, go to Windows Update and download current patches and so on and so forthâ€¦
The upside: Youâ€™ve basically done a clean install as the registry calls are now pointing at the new and correct drivers/dllâ€™s, etc. Additionally your apps, desktop, and data are still in place.
The downside: Thereâ€™s surely some leftover BS from the original config that is now sitting there taking up resources but have no impact on the current OS as the registry calls to them no longer existâ€¦.
Hope it all works out for yaâ€¦â€¦