2008 iMac - screen problems

Hi all

I put my iMac (to 2008) for sleep at night last and this morning when I tried to log in it seemed to have major problems. The screen is all messed up, and it takes some time to open a session. I've not had problems with the system other than a few slow since upgrade to Yosemite. I have turned it off for now.

Here are some images that I think might help more than me trying it to explain the situation.

Hello..

Maybe the graphics card causing distortion.

If you can, run the Diagnostics from Apple or the Apple Hardware Test

Tags: Mac

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