I LOVE Compiz, but I'm having a few issues:

1. When I try to enable the Wallpaper plugin, it doesn't do anything. I changed the apps>nautilus>preferences>show_desktop to false in gconf-editor, but it just makes the desktop disappear, and whenever I move a window, trails are left all over the screen.
2. (Not Dual Monitor issue) When I put more than one picture in Cube Caps, only the top picture has the picture, the bottom face is just solid color.
3. (Dual Monitor)When I try to rotate one cube, it rotates the cube on both monitors(I have multiple output mode set to Multiple Cubes)
4. (Dual Monitor)If I open a window in the second monitor, I can move it down to the primary, but I can't move any windows into the second monitor.

Can anyone explain why this is happening? It seems so easy on the tutorial; I'm probably just missing something simple. I appreciate your help!
(Ubuntu 10.10 AMD64, Compaq Presario V2000, ATI Radeon Xpress 200M, 2 GB RAM)