OS: Windows Vista DVD movies will play in Windows Media Player, but they will not play in Real Player which is current download from website. There is a message about screen resolution adjustment. Months ago the pc would perform "an automatic adjustment from windows standard to windows basic resolution" when playing a dvd. But now there is no automatic adjustment. And although WMP will play dvds, Real Player keeps bringing up message about screen resolution. I have tried all types of adjustment in control panel. Can anyone help me. I dont think it has anything do with drivers, if WMP will play dvds. Also, after I first download RMP it did play dvds, but stopped after 1-3 plays and started showing that resolution message.