Hey, I'm genericforumguy. I recently acquired a Mac when I noticed my neighbor was selling a G5 iMac (PowerPC) for 10 dollars. I got OS X Tiger installed and everything seemed to be going normal except for one thing. When I first turn on the computer after a while of not using it the screen goes static and it's impossible to use. At first I can't even get past yaboot without it freezing. I noticed that after about 5 restarts I can load OS X but parts of the screen still flicker for a couple more minutes. If I boot up and leave the computer at the yaboot screen for 10 minutes and then restart everything works just fine. I have a feeling this is a faulty power supply but I wanted some other opinions before I go order a replacement. Thanks for reading!