Hey all, I recently hooked up my 51" Sony rear-projection TV to Windows Media Center after using my regular computer monitor for a long time and have been having some weird issues. I currently have a TV tuner card that goes to my cable box via coax cable. From there I've been using my video card's S-Video out to send video to the television. Doing this I've had no problems, everything plays fine, both live and recorded shows as well as music and video files already on my computer.

My problem just recently started when I connected my TV to my computer using a DVI cable instead of S-Video. After doing this my TV was auto-detected via DVI and 1080i was the recommended setting. The picture quality went up quite a bit and everything looks great but for some reason any video I watch that has a running time of more then one hour starts to stutter just a few minutes into the video. It's like a streaming video that hasn't loaded all the way and is trying to catch up with itself but is unable to. The really weird thing is it does it on not just recorded TV and videos on my computer but on live TV as well, any TV shows that are over an hour start getting the shakes like Michael J Fox in the Tilt-A-Whirl.

This is really driving me insane, the picture quality is much better but for some weird reason this only happens when using the DVI cable. I've updated the drivers on my video card and TV tuner card and made sure I wasn't missing any Windows updates. Does anyone have any ideas? Here's my PC/TV info:

Processor & Memory
    Processor:    Pentium(R) Dual-Core  CPU      E5300  @ 2.60GHz
    Physical memory:    4 GiB

Operating system
    Name:    Microsoft Windows 7 Ultimate
    Version:    6.1.7600
    Service pack:    

Primary Adapter       
Graphics Card Manufacturer    Powered by ATI   
Graphics Chipset    ATI Radeon HD 2600 PRO   
Memory Size    512 MB   
Memory Type    DDR2

Television
Sony 51" KP-51WS510

Any help would really be appreciated.

In my opinion, I would be looking for a new video card. the 2600 is only a UVD capable card and is borderline capable of 1080i.  If you like ATI, find a board that is at least UVD2 capable so win 7 can make use of its new features, any of the newer ones are fine. If you like nvidia, I'd look at the gt220 or gt240.

You didnt say if it was AGP or PCIe. If AGP, you're pretty much out of luck.

Does it sound like what they are taking about here?

http://thegreenbutton.com/forums/t/79957.aspx

 PCIe