divxG400 may help you.
DivxG400's home page reads:
Quote:
At the moment there is a small incompatibility between DivX, MS MPEG4, WM7, WM8 codecs and Matrox G400/G450/G550 drivers/hardware. If movie's width is not exact multiple of 32 (like 720x???), clip will be played back without using video overlay. If video overlay is not used, clips are looking choppy and DVDMax can not be used.
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and
Quote:
Subtitle output to TV in DVDMax mode
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DivxG400's home page:
http://www.tac.ee/~prr/videoutils/
till now divxg400 has brought me more troubles than solutions but I don't use a TV nor a Matrox card ;)