Geforce GTX 275 - OpenGL initialisation problem when program is started from the commmand console.

Hello all,

Recently I noticed that in a program I wrote (using OpenGL) the texture
"moves" over the quad it was put upon as if its drunk (the texture sways
from side to side depending on the (horizontal) angle of the camera towards
it. Also, when I moved toward the (rather simple) scene the redrawing
started to stutter, as if the redraw took a lot of time - for me an
indication that the whole thing was running on software, instead of using
hardware accelleration.

I first presumed I must have done something stupid, but at some point I
noticed that it only happened when I started the program from the
commandprompt, but not when double-clicking it (already being in a GUI).

The thing is that the exact same program on another computer has zero
problems being started either way - an indication is driver/videocard
related.

Does anyone here recognise the problem and videocard, and knows if this is a
simple settings problem - and in that case which one ?

The OS is XPsp3 Pro. The videocard is an nvidia Geforce GTX 275.

Regards,
Rudy Wieser