Nvidia Gforce 8500GT, using Mint 15 cinnamon one of the applications that I run is pcb. On Mint13 it was very slow to load the layout. On Mint15 all I get is a white layout and clicking the tabs is so so slow to show anything. The same distro on my laptop works fast and good. Also on my desktop it takes a long time after sign on to becoming active. I am using the recommended driver and AMD-64.