Recently I got a very strange bug in QW. Every now and then my view starts bobbing up and down really fast for a few seconds. It's a bit like v_viewheight would be switched rapidly between -7 and +4, like many times per second. It's impossible to do much anything when this happens but stand still and wait it to stop. I got the bug in FUH but I have the same problem in EZ. It doesn't happen often, maybe once every two, three maps, but it's really annoying. Any ideas?

May be hardware videocard problem?
Or u use some buggy detonator(videocard driver).

does it happen with `cfg_reset` ?

B1aze: yeah, I did install a beta version of nvidia drivers a while ago because it was said to speed up Oblivion... I guess I should install the official drivers back and try. Thx for the tips.

-edit- nope, wasn't the drivers either. Same bug with older forceware.

this could be a mouse issue, since old optical mice are in the habit of jitter at times

I had that problem at work with an old dell mousemat with a pretty uneven surface. With a new one the problem was gone.

I never found a solution to the problem I posted in the OP long time ago, until a couple of days ago Diki suggested that maybe it's the cl_smartjump 1. Now I'm not sure if that's it, but when I think about it, a buggy implementation of cl_smartjump could very well be exactly what is causing this strange error, because when it happens my jump doesn't work. I put cl_smartjump back to 0 and see if the problem goes away. Anyone else had this problem? If this is indeed causing it, it's too bad because smartjump is really handy...

cl_smartjump was brocken with first implementation of fpsindepended physic.
Now it work fine, and of course it work well under fuh, cos it haven't fpsindepended physic.
May be you found new bug?
Try standart binds for movement and firing if you have some advantage movement scripts.

I don't have any special movement scripts and wouldn't be able to play without my weapons scripts so it's kinda hard to test that way. However, now testing with cl_smartjump 0, the problem has not yet occured.

just download latest ezquake this bug is oooooold