I have iMac 2010 which is out of warranty. I recently came up to the computer and it was sleeping and was not waking up. I held the powered button for a while so it turned off. Then i pressed it again the iMac turned on but i saw colored lines on the white background with apple logo and activty indicator spinning. It was spinning for a bit then the screen changed to checkered color lines and white background and it froze that way. I turned on my tv that the iMac is connected to and all i see there is white screen. I tried cmd+option+P+R and it did restart and same thing happend. I also tried plugging out all the cables including power wating for few mintues and plugging them back in but that didn't help. What esle can i try? Do you think the monitor is dead or the video card? Hopefully not the hard drive. Here are the screen shots of what happens https://www.dropbox.com/s/ic9qvsxaffc1rmi/photo%201.JPG https://www.dropbox.com/s/5ciecwngyu5se0o/photo%202.JPG Thanks in advance!