So I've had my G4 ibook since December of 2003. This computer has NEVER caused me any problems and has never froze or anything of that nature till today. I was surfing the web and all of the sudden the top portion of screen was coverd in grey lines. I couldn't move anything. I rebooted and then it was fine and I went to church and when i returned there was a grey box that said "restart computer" (or something of that nature). THen I continued to shut it on and off many times and sometimes I would be able to get to my desktop and browse around for 3-5minutes and then sometimes I couldn't get past the start up. When it froze about the last 20times today I could sometimes move the mouse but not click on anything or I couldnt move the mouse at all. I browsed around a bit and this sounds like a logic board. Anyways I'm trying to decide if I should try to get it fixed or just replace it with a new Macbook. I would prolly need a credit card or something because right now I only have $800 and the one I want with 2GB and applecare is $1,600 