This problem has been happening to me for the past couple of months.
My hits don't register, and i keep on freezing then seconds later i'll be 30 odd frames ahead somewhere, usually dead (it tends to happen in battle alot).
Also..
Im having trouble with tremulous responding to my primary and secondary attack buttons / right & left mouse.
At first i thought it was my old microsoft mouse, so i went out and bought a logitech G5 gaming mouse, yet the problem remains.
Anyone else having similar trouble ?