We are having major video issues with SW2009x64 on any machine that has a QuadroFX 3450. One person has a newer machine that has an FX3700 and he has no problems at all opening the same drawings. We've been working with our VAR on this trying different drivers and tweaking settings but so far no good. It only happens with assemblies larger than 40 or 50MB. Anyone else having this issue? Anyone using this card with SW09x64 with assemblies that size and not having any problems? I need to determine if it's a driver problem, a configuration problem or if these cards are just too outdated.