Power supply died, and now video card is malfunctioning

I had the power supply in a 24in iMac (16 months old) replaced yesterday after the computer malfunctioned (Thought it was the hard drive, tech said it was power supply and seemed to have been correct).
The hard drive was formatted prior to sending it off to be repaired so i get it back and go to install Leopard and the resolution looks low. I install OSX anyway thinking it may be a software issue. But that didnt help. All menus have a slight pink tinge to them. Desktop background is pixalted and just ... low resolution looking.
The video card was fine before bringing it in. I can't see why it would suddenly do this. if the video card was messed up, I would expect it to just not display anything.
The monitor is set to 1920 x 1200 and it is correctly displaying at that resolution. It s just that colors are off and images are pixelated. Dont know how else to describe it.
Any ideas?

Here is an image.
Also the background image is sort of pulsating. Really strange. http://uploader.ws/upload/200907/Picture11.jpg
Edit: You may have to right click and open in new window
Edit 2: Just looked at this on my other computer and it looks fine... Ill take a picture with my phone but I assume if the screen shot captured doesn't have the display malfunction that I am seeing, it means the video card is dead? Or the logic board? Arggg.
Edit 3: Picture taken with iPhone so you can see what I see
http://uploader.ws/upload/200907/photo_2.jpg
Message was edited by: Vuguru

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