Problem with mouselook

I've been away from the game for about two months and after I came back, I noticed the camera acting weirdly. When I use mouselook, and move the mouse quickly to right or left, the camera starts to spin around wildly. Sometimes it ends up pointing straight up or down, or just in a random direction.
I've tried changing the camera settings, but nothing seems to help.

Anyone else having similar issues?

Sounds like an issue of a wireless mouse with a weak signal. Make sure the batteries are fresh and/or move the receiver to a better spot.

Except that I'm not using a wireless mouse. :P
I should probably have mentioned that in the first post, since that'd be the most obvious cause for the problem. It's not a hardware problem anyway, since this doesn't happen in any other game.

Maybe something that is running in the background is temporarily taking focus away from the game, causing the signal to "stick" and fly off in a crazy direction. (Kinda how some people who alt-tab to a different program while loading sometimes end up with a
"stuck" alt key, and setting off powers from the wrong powertray.)

If you provide us with a HiJack_This and a CoH_Helper log, we might be able to find something to help.