i have a Nvidia GT540M on windows7 i have no problems, but on linx i need to use the bumblebee project because nvidia use the optiums technology. At this time i can't use with Terragen, normally if i want to run an app with my Nvidia card i need to run in a console with the command optirun. But if i run with:
optirun wine tgd.exei get an error and Tg do not start. I'm using TG, under Linux , with my intel integrated card, it is slower that in windows, and sometimes with complex scene it crash.... i need to investigate on this, maybe asking support on the bumblebee project or on the wine forums.