Well, i went to play earlier and noticed that all the weapon i had set to the naga mouse are gone. Not only that but now i cant even reset them back to the mouse. Anyone having this issue?

Glad I am not the only one with this issue. I had to switch the mouse to use (123) instead of (Num) to get it working.

Yeah, i will give that a shot... i actualy cant get steam to come up right now lol but ill try later.

There was a new patch released just very recently. This fixed (or 'fixed') a significant number of keybindings. Naturally, this has screwed up a number of players' already managed keybindings. I imagine you have been hit with the same.