I'm have a strange screen problem on my 15" 2008 Mac Book Pro (last model before unibody.) About half the time I boot up the machine the lower portion of the screen has what looks like alternating light and dark rows of mini spotlights shooting up from the bottom of the screen. One inch swaths of the screen are more illuminated than others and the entire effect fades about 3/4 of the way up the screen. If I reboot (sometimes several times) it will go away and the screen will look normal again.
What's going on???
What's going on???