XP Home was recently playing up on me - it was freezing at the log on screen. When I left it for a bit, I got a message saying that XP had ran into a problem and needed to be actuvated. When the relevant activation screen came up, it said that my activation code had been used the maximum number of times, and that I needed to enter a new code. I contacted Microsoft who activated it for me, but they couldn't offer any explaination as to why the problem occurred. Do you guys have any ideas? I haven't been handing out my product code, I haven't installed any new hardware, and I haven't had to reactivate other than when I first activated XP. It's got me confused!