I'm not a noob to PC's or HT but I Guess I didn't describe this well enough in my frustration, sorry. I have been trying to get everything done before I hit my heavy workload for a few days. I upgraded everything so I could clean up my HTPC area and just run HDMI. Yes the HDMI is being ran through the GeForce 660, not the MB, with a 10GBPS+ monoprice HDMI cable.
I DO get 1080P video through HDMI, and great sound, but I am getting screen tearing EVEN with Vsync turned to ON globally on the GeForce and playing with the various VSYNC options in Media Player Classic. I have gotten to an almost subtle tear, but you still see them once in a while. The point is, I never once had a tear on my 9800gt!
I have the receiver set to PASS THROUGH for the video signal, so it shouldn't be processing anything.
If I load up Assassins Creed using the same HDMI setup as above the TV and receiver both have a pop up that shows the signal changed to 720p, but it looks REALLY BAD. I can hardly read the words, but manage to muddle around and find the graphics settings....no matter what setting I use, it still looks the same, even at 1080p 60HZ, 24HZ, doesn't matter. Fullscreen, but really fuzzy! The game does a little refresh when you exit the screen, but I have even closed out the game entirely, the settings ARE holding, etc...just always looks like crap.
If I use a DVI cable through the Geforce 660) the picture looks fine, but 1080p in a box in the middle of the TV, like something still isn't right about the resolution I loose the digital audio obviously. Besides, the card is supposed to handle it! If I go from the video card to the TV with the HDMI, I would lose the digital audio to the receiver and it defeats the HTPC clean up idea (all HDMI inputs to the receiver, 1 out to the TV.).
I hope this is a better description, I am ready to send the card back if this isn't resolved by the weekend.....but it sounds like the 7000 series AMD cards have the same tearing issues. Maybe I will just throw the 9800 into this one and call it a day.