5670 Flickering / Resizing problem - Can't Fix!

Here's a video of my problem. I have been been struggling with this forever now and I can't fix it and it has made my htpc setup worthless. When you watch the video, pay attention to the borders.

http://www.youtube.com/watch?v=eWBlnPFP2hs

As you can see, the screen resizes and blanks out randomly. I uninstalled and wiped the latest ccc and put on 10 (something) and it seemed to help. Not sure. I have tried forcing options, always 1080p, with varying refresh rates. I've tried using the HD config options (1080 / 24, etc.) I had this card working previously but now it's all screwed up. The denon blanks out like it is getting a different signal or something. I have other HD components (bray, Xbox 360) and no problems.

Btw, I have a 5670 on xp plugged into to a denon 1911 to a Toshiba 55" 3d TV (don't know exact model.) I am using 1.3 HDMI cords. Could that be it? Not 1.4s?

What am I missing? Please please help. It could be such a nice setup and I am so very frustrated.

Thanks,
Josh

Did you have similar issues with the driver?

I am not 100% sure but I swapped out the cable for a 1.4 and the flickering went away. Not sure if it was the 1.3 or if I just have a cheap broken cable. Don't buy CHEAP CABLES! Hopefully that will solve it. Watched a movie and it didn't flicker at all.

Ty for the input! :-)