I'm using the most recent client, on Slackware 12, with NVIDIA's proprietary drivers.

Everything works absolutely fine, except that whenever I move the mouse beyond a certain speed, something seems to lose track of what's going on, and everything sort of "skips". It even happens in the menus before loading a map. If I move the cursor too fast, it'll suddenly skip ahead across the screen instead of actually travelling across. In-game, when I turn quickly, I suddenly "skip" and find myself facing in some unexpected direction.

It feels a little like lag, but it's not the connection (it happens even in local games). I've played the same version on the same hardware on other distros, and the problem did not occur. It doesn't happen in any other games either.
It's not mouse sensitivity either. These skips are absolutely instantaneous.

Any ideas? I'm absolutely stumped.

Edited to add relevant hardware specs:
- Core2Duo 1.60GHz
- 1GB of memory
- GeForce 7300GT 256MB

Well, isn't that just typical? I've struggled with this for weeks now. I've tried avoiding it, putting up with it, spent lots of time trying to fix it... never once did it occur to me to try the -sdl binary instead of the -glx binary.
And as soon as I actually ask for help with it... the light-switch in my brain finally clicks. Egg, and my face, are in alignment.

Henry, for what it's worth I had the same experience with slack 12. Nvidia driver as well. I went distro hopping for a bit and I'm back to Slack since then -- but now I can use the glx version without issue.

I don't know what's different now as opposed to then! Oh, well.