I am running windows xp home edition. I recently had to reinstall. I had no problems activating my copy of WinXP, but now, when on the internet (every other day or so), I get an error box that says the Keycode I entered could not be validated. I don't even know if this is XP related or what. I'm nervous though. I don't want to be locked out of windows. I checked on my activation of XP - it's fine. Help, please.