The rotor setting can be a little tricky/frustrating - you have to select BOTH the Max elevation radio button to 90 deg and the Azimut rotor button for 450 deg will then be accessible. You can't have both flip capability and 450 selected as far as I know. I find I prefer flip over 450 deg, personal taste. How is your rotator control interface connected to the computer? Mine is a USB to an ERC-M, sometimes Windows loses the USB port; shut down SatPC32, unplug and plug the USB cable back in and you should be OK when you restart. It's an OS problem more than an app problem. Correct, Countdown only shows next pass. I use G0KLA's "KlaTracker" app to see multiple passes. Access to the W4, W5 displays depends on the resolution of your display and maybe size. My laptop won't display W5. Doppler.SQF has to be customized for your radio and the birds, as sometimes the satellite is a bit off or the radio may have some drift. At least that is my experience with older radios. RS44, the CAS birds, and EO-88 seem to be the most consistent for me. Fine tuning can be done entirely from the SatPC32 screens using CAT / Change/Store data file / Uplink Calibration. The developer is a native German speaker so some of the less (?) common error messages are auf Deutsch. He is extremely responsive to email questions and has done a bang up job for years on the program. I have not experienced the forgetting of saved settings (but if you use 2 configs, say for 2 different radios, changes made in Config 1 ARE NOT copies to Config 2). GPredict may have better eye candy but it's own idiosyncrasies. SatPC32 will grow on you.