Greetings --
This happened because you've pulled the proverbial hardware rug
out from under the OS. (If you don't like -- or get -- the rug
analogy, think of it as picking up a Cape Cod style home and then
setting it down onto a Ranch style foundation. It just isn't going to
fit.) WinXP, like Win2K before it, is not nearly as "promiscuous" as
Win9x when it comes to accepting any old hardware configuration you
throw at it. On installation it "tailors" itself to the specific
hardware found. This is one of the primary reasons WinXP, again like
Win2K before it, is so much more stable than is Win9x. FYI, for
future reference, comparing WinXP to Win98 is a lot like comparing a
Lexus to a Yugo -- the only similarities are entirely superficial.
Normally, and assuming a retail license (many OEM licenses are not
transferable to a new motherboard), unless your motherboard is
virtually identical (same chipset, same IDE controllers, same BIOS
version, etc.) to the one on which the other WinXP installation was
originally performed, you'll need to perform a repair (a.k.a. in-place
upgrade) installation, at the very least:
How to Perform an In-Place Upgrade of Windows XP
http://support.microsoft.com/directory/article.asp?ID=KB;EN-US;Q315341
As always when undertaking such a significant change, back up any
important data before starting.
This will also require re-activation. If it's been more than 120
days since you last activated that specific Product Key, you'll most
likely be able to activate via the internet without problem. If it's
been less, you might have to make a 5 minute phone call.
Bruce Chambers
--
Help us help you:
You can have peace. Or you can have freedom. Don't ever count on
having both at once. -- RAH