I'm at my wits end with mastercam. Was trying to set up my machine simulation to try and verify some can syces, and I kept getting this error even now when I open verify. and then after running my simulation and I close out the screen, the window turns black and mastercam crashes and I need to do a Ctrl-Alt-Delete just to close it. This happens almost 4 to 5 times a day. If any one out their can explain to me what's going on and how to fix it that would help out tremendously. My IT department has no clue about this issue and my reseller has not gotten back to me so I'm stuck with this crippling problem. Any help would be appreciated.