I've got a problem where I can see the toolbars on the top and bottom of the Solidworks window, but the rest of the window is transparent (I can see my desktop and/or other windows open behind SW.) 

I've followed the suggestions on other forums and disabled nVidia desktop manager, updated all of my drivers, restarted the computer, reinstalled SW, etc.  No luck. 

I am running SW 2015 SP5 on an HP ZBook 17 G2 with an nVidia Quadro K3100M.  My configuration is approved according to SW.  I'm really not sure what else to try... any ideas?