So I got this really cool 3D Matrix-style screensaver. Very pretty. But whenever it runs, my fan screams like a banshee. My trusty Temperature Monitor says my GPU has hit 150º F. Should I ditch my lovely new 'saver, or is it okay to let the sucker run for a limited period (5 or so minutes at a go)? I'm running it on a 12" PB 1.33 Ghz. Thanks, in advance, for advice. You can check out the screensaver here, if you like.