Hi every one, Here is the stroy, I bought an iMac through Ebay and was the worse deal I've made in my entire life ( I'm a bit exagerating) but still It was a bad deal. The seller has annouced on his add that the Imac is a 17" intel and it is in an excellent condition. Anyway, I bought it for 670 $ and when I received it I discovered that it is not a dual but a single Imac and not 17" but 20" ( this is the only the positive thing about it). The computer was a mess and was dirty like a garbage. I tried to clean it up with paper and water but some black dots on the middle of the screen didn't give up and remained on the screen. Also, both right and left side of the screen are darker than the middle, like a dirty space that wont to be removed. The yahoo messenger does not start up ( I insalled it several time but no way). Safari crachesl. I called by phone apple and ask them about the screen and they said that it is a hardware issue and maybe I need to replace the screen. Any idea about how to fix this computer will be much welcome. Ah I forgot, I insalled the mac os x but no improvement.....please help on this and sorry for my english!! I have contacted the seller about this issues and was I surprised that He told me that he wasn't aware of this issue. He gave 120$ back the petty thing is that I couldn't ask for the entire refund as I ve already opened a dispute against him thorugh Paypal and closed it up and cannot reopen but that's another stroy....! Also, I wanted to know if there is a way to resolve this yahoo issues. When I click on the yahoo icon it apears for a second on the tool bar and sudenlly it despears, yahoo messenger does not open, thank you!!