I've been running the "corporate" version of XP since it was first leaked out onto the net (the "Devil's Own" release). And of course I was using that famous key that starts with "FCK".

As soon as the Key Generator came out I immediately made myself a new key -- anybody with half a brain knew that Microsludge would disable that key with the next service pack. They did the same thing with Office 2000.

So today I installed SP1 and everything's just fine. I really can't tell any difference.