Autorotating in 1stpersonview :(

Okay, i searched all Forums for "controls rotate problem", to no avail.
So, heres my Problem :

If i use my mousewheel to get into 1st personview, i start to rotate
counterclockwise, automatically...
This also happens, when im in 3rd personview and grab myself with the
mousepointer then turn the camera.
I always have to countersteer, which is very annoying.
Almost like sitting in a Helicopter whose Tailrotor is blown off.

If i swith from 3rd-p-view to 1st-p-view with the m-key it does not rotate my
avatar, but as soon any short input from keys or mouse comes, it starts again
and wont cease.

I would appreciate any help on that matter.
Greetings, Yrol

Update :
This is getting weirder...
If i switch from fullscreen to windowed mode, it does not rotate counterclockwise
but to the top...

If you change ui size to anything lower then 0.975 (i think) it will slide around on its own in firstperson view, and in 3rd when modifying prims

When are they going to fix this?, not a clue been months now

I heard that was a problem with certain graphics cards.

Tadaaaaa

°smiles°

Thank you, Thili, that was it...