Core media player problem!

[Trillback]

My Core media player worked fine yesterday but today it's all screwed up.
When I try to start a movie nothing happens or I get the following message:

"Access violation at address 005DE674 in module 'CorePlayer.exe'. Read of address 0000000C"

If I switch to fullscreen I get this message:

"Integer overflow"

Reinstalling it doesn't solve the problem.

I sure could use some help.

[setarip]

Did you install any other software since yesterday?

[Trillback]

Yeah, I did install WinMPG yesterday and I thought that that might have been the problem but removing it didn't help either.

[setarip]

1) Did you simply remove WinMPG, or uninstall it?

2) If you're running WindowsXP, simply rollback to prior to your installing of WinMPG