[Q] Thoughts?

Hello folks, so I've had my Samsung tab 10.1 since last June, and suddenly today it started looking like this:

(sorry, i'm under 10 posts)

i.imgur.com/hH3c0.jpg

I'm thinking this is an overheating issue in the video hardware, since I had a vid card that would do this exact thing after it overheated.

So from a powered off state, the tablet is fine for abour 2-3 minutes, and then it slowly gets worse and worse until it's as seen in the above picture. If it's powered off again for a few minutes, then it's fine and the cycle repeats. I've tried a hard reset for ****s n giggles, but I'm pretty convinced that I'm hosed here.

In case anyone's interested, I'm still running Samsung's stock Android build.

Thanks!