I upgraded from MP 9 beta to the newer version, & now it won't play DVD's I get this message "Windows Media Player is currently unable to play DVD video. Try decreasing the number of colors displayed on your monitor or decreasing the screen resolution. For additional solutions, click More Information to access the DVD Troubleshooter". I have been through all I can find in troubleshooting including decreasing from 32 bit to 16 bit colour. Any ideas, I have not changed any settings & the old one worked fine.