Nvidia GeForce MX 420 - DVD Problems

Hi there... I'm using Windows XP Home with a GeForce MX 420. I have PowerDVD 5.0 installed on my system, and up 'til now have never had problems viewing a DVD. I watched one on the computer about a week ago, with no difficulty.

Now, however, I'm getting an error message that tells me to that PowerDVD cannot play copy-protected DVDs unless I disable the TV out.

Well, as far as I know, the TV out on this system has never been enabled. I've tried all the settings I know of, and can't find the bloody thing to disable it, even if it is (somehow) enabled.

Any ideas, people?

Thanks very much for your help.
Tim

 

an update

Well, I rolled back the driver to see if that would help. It didn't. Then I installed the newest driver, which also failed to correct the problem. Finally, I performed a system restore to the date I last successfully used PowerDVD. Now I'm getting a different error message:

Your kernel version is incorrect. Please upgrade to a newer version of PowerDVD.

Aside from doing what it says, is there anything else I can try? This should not be happening.

Tim