Hi everyone! I've been having some graphic glitches on my 24" iMac (late 06, 2.16 C2D, 1GB RAM, NVIDIA 7300 GT 128 MB) and I'm really starting to worry. I think that the problem started to happen around the time I installed Leopard on it. I even upgraded to 3GB RAM to make sure that that wasn't the problem but no go, I'm still getting the occasional glitch (well, sometimes it's more than occasional. I'm afraid that my GPU is toast because if that's the case am I suppose to just throw the iMac in the trash? Keep in mind I live in Portugal where there is still no official Apple Store and my 2 year waranty has just ended in October 08. What are my possibilities? I already had to replace the Superdrive (stopped working) and the hard drive (needle was clicking constantly on the HD) but it was all under warranty. I'm afraid this time it's "bye bye" to a 2000 computer that is just 2 years and 3 months old. Here's a screenie so you can see what it's all about, this screenshot was taken just 15 minutes ago. Thanks in advance for any help.