hi, i have a imac 21.5" bought mid 2010 and now all of a sudden it froze up and tried to restored it but it won't go through the installations of OS(I already deleted everything from disk utility) my screen is white with light blue stripe. I ran disk/hard drive repair and said its was okay. Do you think it's probably the video card was broken? I'ts weird as I am using it right now the safari even wothout an OS(just browsing) but that was it. Now my question is how do i know if the problem is the video card? or anything else probably?
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