Imac 27" I5 Graphics Problem (green bars)

[DeepSquat]

Just got a refurbished 27" Imac I5 with the Radeon 4850 yesterday.

This happened twice yesterday, so today, when I powered on I had my blackberry ready to record.

As you can see theres a large green band (yesterday it was accompanied with a red one) that spans the vertical aspect of the screen. The bars disappear after 30-1min.

I've tried searching and haven't found anyone with a similar problem.

Any help or suggestions is appreciated!


Video of said problem:

http://www.youtube.com/watch?v=mGK3LYb23mc

 

[rkahl]

I had the same issue, it's a hardware problem. You need to return it.