Well after installing the ATI graphics update so far so good. Funny thing is I was on the phone to Apple talking to their service guy re my Imac freezing. He is telling me same old stuff check hardware test etc. While I'm talking to him I check for an update and there it finally is. Seems funny I would be the one telling him there is a update to download. They seem to have some communication issues within there different departments. I was within 1 minute of telling him I was returning the machine. I just hope thats it for the quality issues and I can just enjoy my new Imac now. If I have any freezing issues I will update.