1) app crashes when PC switches off monitors. When the monitors wake up the 3d view of Simplify is a black square. Seems to be partially related to having SLI switched on. It happens less often when I switch off SLI.
2) Saving of process settings only occurs when you quit. This is infuriating especially as I've had a few crashes lately. So make some changes to process settings, do stuff, print, what ever, if you don't shut down cleanly it will lose them. Just add a save button.
3) related to 2) Delete button for process settings should have a confirmation. It's way too easy to accidentally hit the button and delete the settings.
4) Forum failed log in check asks a question if you get your password wrong a few times. I think mine was "What does FFF stand for?". Being in a bad mood I entered something unrepeatable (although it repeated the same four letter f word three times) and it let me in anyway.