I've been having ongoing issues with large files. these are Visualize files with 10 to around 18 million polygons. It is very sluggish and difficult to work with. I know I have read others having issues also.
I happened to check system info in Visualize today and noticed this memory reading.....
Notice that it only shows half of the capacity of the video card which is 8 gigs of memory. BTW it doesn't matter if files are opened or closed.
nVidia control panel shows the card has 8 gigs of memory.
Don't know if this has been the issue all along but if anyone is having problems with large files please check and post a response.