I have a 14" iBook G4. I got it refurb from the Apple website just over 2 years ago. It was made in 2005. The other day the screen started blinking randomly. It'll flicker for a few seconds and then go white with vertical grey lines for a few seconds. Then it will go back to normal. There doesn't seem to be a pattern to it. Sometimes it will go through that process for five minutes and then stop. Other times I can be working on it for hours and nothing will blink or act screwed up. The only changes I've made with it is upgrading to Firefox 3 and updating my software through the software updater last weekend. My dad thinks it may be issues with the video card/motherboard. If it is, is that worth it to fix? Or should I get a new computer? Anyone know how much it would cost to fix? The warranty expired over a year ago. The battery is hardly lasting 1.5 hours anymore. Coconut Battery says 29% of original capacity. I don't want to bother getting a new battery for this if I'm just going to have to replace it.