Global Keyboard Shortcut Issue
 

I'm having a problem using Global Shortcuts. I've enabled the feature, removed the keyboard commands I don't want to use, and added the ones I do. Basically, they're commands to Play/Pause/Stop, as well as move to the Next and Previous songs through Num Pad keys.

However, there are some commands, that aren't listed (and aren't even listed in the Default list) that are quite annoying. Basically, any time I press the Right Arrow, it's equivalent to pressing the Play Button in Winamp. The Left Arrow is Stop, Page Down is Next Song and End is previous Song. They also don't do their intended tasks. For example, pressing "End" doesn't take me to the end of a line of text, it only switches to the previous song in my Playlist. So you can see how this could be problematic.

Is there any way to remove those commands, while retaining my preferred Num Pad commands?

EDIT - Possibly related, when I press my mouse's Scroll Button, it also stops my music. This is with a Logitech G5 mouse.