help....

Hello, everytime I insert a DVD to play in Media Center,
I get a green screen and my system becomes very slow.
Below is a copy of the error I was able to find in Event
Log... any help would be greatly appreciated.

Thanks.
Ben
Event Type: Error
Event Source: MediaCenter MediaCenter.Video.DvdSession
Event Category: None
Event ID: 0
Date: 18/08/2004
Time: 8:08:40 PM
User: N/A
Computer: MEDIAHOME
Description:
Unable to load media ""

System.Runtime.InteropServices.COMException (0x8000FFFF):
Catastrophic failure
at ehiPlay.DvdPlayerClass.OpenDvdMedia(String
wzDvdDrive, IMSVidGraphSegmentUserInput& ppUserInput,
IMSVidWebDVD& ppWebDvd, IDVDEvents pDVDEvent)
at ServiceBus.UIFramework.VideoViewport.OpenDvdMedia
(String stDvdDrive, IMSVidWebDVD& ppWebDvd)
at MediaCenter.Video.DvdSession._LoadMedia(IMedia
media)
at MediaCenter.Video.VideoSession.LoadMedia(IMedia
media)

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.