After replacing those orex tree models, I figured out something... they weren't the problem. Apparently my video card still seems to lock up on me and my drivers still freeze, I'm out of ideas here. But it also seems that it gives me an error like this everytime I load canyon MDLCache: Failed load of .VVD data for Common/props_foliage/trees/orexCluster2B_static.mdl It's not only the .vvd data file, occasionally it seems to be the .sw file to.