Help with TF2 lag/mouse jerkiness issue

[Flash]

Recently I've been having an issue that is making it really hard to play TF2. It seems to get worse when the server fills up, I don't experience it during seeding.

Basically what happens is that my POV will randomly jump 90 degrees, like I flicked my mouse to the side very quickly. However I'm usually barely touching my mouse at all when it happens.

I've included a video to illustrate the problem. (Obviously there was a render issue because other players don't show up but that shouldn't matter for this.) It is most apparent when I have trouble getting around corners, run into the barrels or the wall randomly. In most of these cases I'm just trying to get up to where the fighting is, I'm not in the middle of it.

Any and all thoughts are appreciated.

[Plas]

Looking through google came across this post and video, not sure if you are using a Mac, but the video below is close to the same issue.

http://smoothmouse.net/forum/topic/209- ... ge__st__20



I also see some discussion on using console command m_rawinput to fix some mouse control issues.
http://forums.steampowered.com/forums/s ... ?t=2808204

[Gizanked]

He does in fact use a mac

[Flash]

Thanks Plas I'll give those a shot this weekend. As Giz said I am using a Mac with a Razor DeathAdder 3.5G. But I've been using this combination for over a year now and this issue just popped up making me think something in a recent update changed.

[Plas]

http://forums.steampowered.com/forums/s ... ?t=3147683

Recent topic on steam forums about a user on mac that was running tf2 fine then developed a mouse sensitivity issue. Some talk about fixing it temporarily by going to windowed mode.