Sorry if those bugs were already posted:
1) Exit bug - Start in full screen, go to Normal mode, back to Fullscreen and exit with Alt-F4. The full screen is closed but DD still running...
2) Go to Options-Perfomance and select "Delay for stability..." checkboxes (Diseq or channel). Now the mouse will not be auto-hided in fullscreen mode - vey annoying

Hope it will be fixed and this awesome program will be perfect