This only seems to happen when i play Quake Live and only when online... if i just run around locally or warmup vs a few bots its fine.

At first everything feels fine, mouse feels responsive.. but the longer i play it almost feels like i get more mouse smoothing (m_filter 1 effect)
This gets progressively worse over the course 20 min to a hour to where the mouse sensitivity just feels way off and even starts skipping and has problems tracking entirely.

It feels like a bizarre memory leak except the performance of my pc remains fine.

At first i thought it was a mouse driver thing with the kinzu v2 but its the same without drivers... and i get the same with a zowie am, a logitech g100s, a ms intelli 3.0.

I am kinda at a loss what is causing this as it just seemed to start happening about 3 to 4 weeks ago.

Restarting the client does help a little but complete reboot is better even if it just starts the whole process over again.
Although if i dont reboot, and just play offline its all fine again...