Thanks for the reply. Thats something I considered as well, however this also happens when I am not at my computer/haven't hit any keys for a while. For example, when I returned home yesterday afternoon (having left my computer on), Media Center was open. It opened three more times through the course of the evening. Once while playing Bioshock, the others while working on a school project in Word/ online in Firefox. Specs: HP Pavillion/Athlon X2 4600/2 GB Ram/XFX GeForce 7950/Windows XP MCE