When I try to play an HD-DVD movie take King Kong for example the stuff before the main menu play just fine but when I start the actual movie it is very choppy. I can open the settings and under the video tab the grayed out box next to Hardware acceleration is uncheck. But before I start the actual movie it is checked. The HD-DVD advisor is all green, I am using VGA, a Nvidia 7900gtx, and the XBOX 360 HD-DVD drive. Which the Powerdvd site say are all compatable. SO whats going on ? Can anyone help me?

How are you opening the movie?

I just click play on PowerDVD then wait till it gets to the main menu then click play movie the it plays the FBI and when it gets to the Universal planet thing it starts to stutter and the hardware acceleration box is unchecked.

What CPU are you using?

Check the PowerDVD 7 Ultra thread in the HTPC forum.

I'm using an AMD FX-60 2.6 GHZ

Bump

Sounds like power DVD is having problems detecting it's an IME disc.

Solutions:
- 1, upgrade powerDVD if possible
- 2, use winDVD instead
- 3, decrypt the disc to you hdd and remove the IME stream

Do you have the proper drivers for the HD DVD drive? Have they even released an "official" version in the U.S. yet?

I just click play on PowerDVD then wait till it gets to the main menu then click play movie the it plays the FBI and when it gets to the Universal planet thing it starts to stutter and the hardware acceleration box is unchecked.

Is PowerDVD not giving you the option to check the box? I know when I first started using it, I couldn't check it.....however, after changing a hundred things on my computer because I had stuttering, it finally gave me the option to check it. It's much improved, but I still get a slight bit of stutter from time to time.