[Wine] WineD3D messed up my VM, how do uninstall it?

[MKVCrazy]

Host: Ubuntu Karmic Koala
Guest: Windows XP
VBox: 3.1.2 PUEL

I was happy using my guest XP with Guest Addictions installed. But I wasn't able to get the videos play perfect. It picture will messes up if I move the windows around the desktop. So I though it might be lack of WineD3D and so I installed it from wined3d.iso. Then it messed up my guest XP. Now I cannot even play and videos which I could before and it says Direct3D is not enable when I do this "dxdiag" in the RUN command.

Can you guys please help?