Dr Alan McIvor wrote: > > The effect that I was seeing was that over a substantial part of the > image plane the luminance was at its maximum value (ie being digitized > as white). Looking at the histogram of luminance values there were no > low values of luminance either. This wasn't readily apparent on the > monitor because you could change its brightness/contrast knobs to get > what looked like a decent picture. Excuse if you said it before, but, what videoboard are you using ? I got some problems like yours, with a pxc200 card, but not with my bt878 (osprey I think) card. -- Gleicon S. Moraes Writing about music is like dancing about architecture. -- Frank Zappa