Ramp mode problem

These are the job settings:

About the preview window, I cannot open it… I’ve tried even restarting the PC and preview window is not working. When I try to open the preview window, takes around 10-20 seconds, then appears and disappears a window with a progress bar so fast that I can’t read what says, and then appears a new task on the task bar, but looking there is an empty window that is not showed on the screen.

By the way, I’m working with LB 0.9.07.