I tend to use mouse 4 and 5 for my VOIP applications such as teamspeak/ventrillo. It would be exceedingly useful if uber could please let us unbind these buttons, since really left-click is quite enough for what the buttons currently replicate. Edited to be less confrontational, I was a tad miffed at the time.
Don't worry it's gamma, the procrastination stage. I'll give you the rundown of what people will reply to your thread. Soon.
I was actually going to say that the game isn't really compatible with mice with more than three buttons :|