You can get the ipac to have a wake key, and while I didn't try it, the firmware I was sent also had a power on key (which as noted I believe requires bios support), and by default with the ipac this is a shifted function only. So unless your cat is adept at pressing the shift button you programmed plus the power button you chose to use, it isn't getting turned on by mistake. Then again, according to youtube some cats are playing the piano now, so for all you know, your cat might not just be powering up your arcade, but playing a few games of Mouse Trap....