the poor cat.. you thinking of killing him. tsk, tsk. Think of it....he's got dementia, he's old and weak..and to top it out..he can't help it..he doesn't wear adult kitty diapers. But yup..know what it is.. my sister has two cats..one is too old to climb the computer desk..but the other..is a queen of cat..and sits on the monitor to warm herself. I'm sure if the monitor is opened up, there'll be a flurry of a truckful of cat hair flying out!

Cover your wacom..or place it somewhere where he can't reach it!

I can only think of the video card.. that would affect the monitor and make the computer shut off..