i'm trying to obtain the best settings for running autocad on vpc (not a great idea, but necessary in my case). i've read somewhere that to turn off virtual memory yielded the best results. however, when i go to "system props/advanced/performance options/virtual memory" i get options for a "paging file". not a simple on/off button for virtual memory. the minimum allowed is 2megs and the recommended is 766 megs. is there some other way to turn off? should i? in addition, how about screen resolution. if i lower it will the system perform better? autocad is the only pc app i'm using and i don't care about graphics here. presently have it set at 32 bit True Color. should i go to 16 bit or 256 colors?