New motherboard problem

[Harry]

I just installed a new motherboard yesterday and now windows tells me to activate it again...I typed in the code and It says I have exceeded the amaount of activations I am allowed to do..Does anyone have a clue what I should do? or do I have to reinstall windows? Man that'll be boring:p The Reason I am able to type this message was clicking the link to the M$ website and typing "C:\WINDOWS\explorer.exe" in the bar :p
Any thoughts?

[FATAL]

I think you are supposed to call microsoft techincal support or something like that.

[Harry]

Ah its ok now, All nice and activated:p