George, a good point which I've added to my to-do list. Thanks!

BTW, I've helped Hans-Albert via e-mail. I should also point out that the CCF DLL is the hard work of Olivier Couvreur, not myself.

BTW2, it seems the crash problem isn't caused by empty lists as I first suspected but happens whenever the device resolution dialog is used. (Which happens if you import a Nudelist list or delete an SN-Device, for example.) After a crash, running the program again and pressing execute works fine. Should be easy to fix, just been very busy the last couple of days.