This claim from West Mountain seems dubious.
DIGIPAN PROBLEMS If you are having trouble with DigiPAN stop using it and try WinPSK! We have had numerous reports of DigiPAN having a blank waterfall display. In QST there is a report of this which was cured by increasing the display colors to 256 colors or higher. We have experienced this but we were running high color and we fixed it by re-booting the computer. We have also had reports, and experienced it ourselves, of, DigiPAN not working with the serial port. We do not know what causes this but they are aware of the problem. We fixed this by completely removing and re-installing the program. Anyone confirm this is a real problem?