Odd flicker on my PS3

[schizbomb]

Here's the deal with this. Just got a new Toshiba 1080p LCD (40RV525U) and so I went to hook up my PS3 to it. I did the video reset thing, and it correctly detected it as 1080p, so I accepted, and loaded to the XMB, and noticed it flickers this white "snow" on the bottom half, or top half of the screen. It never flickers the entire screen.

So I figured it was a bad connection, and reconnected it, same thing. Switched to a different HDMI port, same thing. Switched to the 3rd port, same thing. So now I thought it was the cable and I switched it out with the one I used with my HTPC, same thing. Now my HTPC is at 1080p but doesn't flicker at all, so still thinking it's a cable, I borrow a 6ft HDMI cable my buddy just got from monoprice, same deal.

Now this is when I change the resolution, at 720p it's fine. Completely no flicker, so then I go back to 1080p, flicker comes back. Then just for s**** and giggles, I fire up a bluray at 1080p, absolutely no flicker at all. None.

So I try a 720p movie thats on my hard drive, flickers through the entire thing.

So I bring it back to my PC monitor it was on before, and there is no flicker at all using the same cables I am trying on the TV. So I have no idea what's going on.

Summary: PS3 (60GB) flickers in the XMB and hard drive based contect at 1080p, but never during bluray based, including movies and games.

Setup: PS3 via HDMI directly into the new TV, no AVR.

Do you guys think it's still a bad cord? Or maybe the PS3 is bad, or the hard drive itself is bad?

I'm really at wit's end here.