I have a 9600XT, and I all I have to do is plug my S-Video cable into the card, then into the TV. Then, I go to the software bit.
I start by doing this (providing you have a similar driver and software for the card):
This box is empty now. That is because I have no TV plugged into the S-Video Out, or because I haven't clicked "Detect displays". When you click "Detect displays", a small picture of a TV should appear.
This is good. Click on that little image of a TV, and drag it into the second square beside the one featuring a computer monitor. When this happens, a little menu *may* appear, once again, providing that you're running similar software. It *may* look as follows:
After it has applied the settings (should take 5-10 seconds with minor screen flickering), it will ask if you want to continue with this setting. With your TV on, and the S-Video cable plugged into the video input jack (or S-Video jack, I use a video one because I have an adapter plug), your TV should now be displaying the contents of your desktop and whatever else appears on your monitor. Essentially, it should be a clone. Anyway, click "Yes" or "No", whichever you prefer. You have 15 seconds to chose, or it reverts back to default settings.
When you've clicked yes, it should look as follows:
Now, after all this is done, you'll want to configure your video settings. To do this, click the "Video" extension, and select theatre. Default settings should look as follows:
Note that it is in "standard" mode. For what it appears you want to do (watch computer movies on TV in fullscreen), you'll want to click "Theatre Mode".
After that has been selected, the theatre mode settings become accessible. Depending on your preference, you can chose either "match the source video" (keep the same aspect ratio of the screen sizes) or "scale to full screen", or stretch the computer-video image to fit the whole TV-video image.
And now you should be able to watch computer videos on TV.
