Try these.
• Click Start, click Run, and then type desk.cpl in the Open box. Or, right-click an empty area of the desktop, and then click Properties.
• On the Settings tab, move the screen resolution slider to 800 X 600.
• Select 16-bit for the color quality, and then click OK.
Some display drivers cannot support DVD playback at higher resolutions and color depths. If this solution works, by using an updated driver, you may be able to play the DVD at higher color depths and resolutions.
Do you have S/PDIF enabled? Try disabling it and using analog out just for testing. Audio cards can cause video skipping as well.
Goto settings on desktop. right click got advanced settings - make sure the MX5200 GeForce is setup for DVD playing.
Try this utility.
http://www.divx-digest.com/software/reclock.html
Good luck and report back
