This may not fit here but I think it bears to the overall problems people experience.  I'll say the below in reference to ALL software companies.

I think a lot of issues arise from the listing of minimum system specs.  I think people see this & say cool my machine is up to speed.  I think software companies need to be far more specific in there sys. req. & comparable charts.

For example - you have the minimum specs, but what isn't stated is that with that setup you'll be lucky to get in 1 Poser figure & maybe a terrain before a crash.  You might as well forget displacement/SSS items of this nature should be explained up front.  IMO it should be stated if the programs were indeed optimized for x64 rather than x32.  IMO it should be stated if there are memory caps in the different versions.....Lite vs Pro(insert whatever levels a company has).

I know some of these items some people might think oh well those are obvious - well to most they aren't.  Being far more specific & realistic from companies regarding this would limit the customers upsets/dissatisfactions IMO.

Also, specific to the Video card issues - I have a feeling(this only applies to VEasel-Vpro)  I notice in the memory mgmt specifics listed at EON - these people are missing the clear OPenGL data before rendering, optional limits on the OGL poly count, auto degrade on screen when memory gets to high.  It's worse for Easel peeps as they don't even have the option to purge memory.

So I bet the above issues(VC related) are why so many are having OGL issues as there is really no way to "clean"....other than to restart :(