Install XP with Boot Camp, then installed Parallels, now my lincense key doesn't work

Yep, I installed Windows XP Pro through Boot Camp, and I successfully entered in my (valid, student) license key. I then successfully activated Windows. After installing Parallels, it's asked me to re-validate Windows due to "significant hardware changes." Using my same license key (that was successful an hour ago), I now get an error that says my key has been used too many times, and I need to enter another one.

What do I do now? Should I call Microsoft? Either way, seems like a pretty significant issue.


Besides this snag, my first few hours with Parallels have been AWESOME!

Btw:
I'm using 10.5.2 on a 15" MacBook Pro I got a few days ago. For windows, it's Windows XP Pro w/ SP2. And as for Parallels, I'm using a copy I bought from the Apple store a few days ago, and I let it do an online update first.

Thanks!

 

Alright, I called Microsoft and the automated activation lady just made it work again. I guess it wasn't a big deal after all!

 

Activation problem resolved in build 5600 and later (5608),
Please download build 5608 following link bellow:
http://download.parallels.com/v3/en/GA/Parallels-Desktop-5608-Mac-en.dmg

and reinstall Parallels Desktop as described in kb
http://kb.parallels.com/en/4790