Im 2004 and 2005 i purchased two imac g5's both with 1.6ghz and 768ram. At this moment neither one work. Was there a problem with these models? Apple returned one and gave me a brand new and current model. (which was amazing on their part) My second one was working up until recently. Now when i power it up it just make the apple tone and then nothing happens. I even tried connecting it to another display. Are there any stores out there that do simple repairs on these models? It's a good system to listen to itunes or surf the web. I'd hate to trash it.