Hey list, Just a short FYI... I recently had the situation when it was useful to have captured OGL flipbooks with an alpha channel. I never needed animatics with alpha and I was surprised that it only worked on one workstation with a ATI card but not on the others with nvidia cards (quadroFX and quadro4000). After all the years avoiding ATI with softimage, there seems to be at least one (largely unknown?) feature of ATI cards. I tried different settings on the nvidia quadro driver to mimic the behavior of the ATI card but did not succeed.
Not sure if its entirely by the graphics cards but it was the only difference on these workstation far as I know. Happy easter, sven