I've been doing some minor dvd editting using Pinnacle Studio 9.4 on my XP desktop, with no problems for a while until recently. Now when I play a DVD using any DVD playing software, including viewing editted clips in Studio the picture is really really dark. I assume something went wrong with the decoder for mpeg2 but didn't want to change anything until I got some informed input. Does anyone have any ideas? Thanks in advance.

- Tuan