Thank you for reporting the bug, I will see if I can reproduce and fix it.
73 Alex VE3NEA
I think found a bug when using bandmaster on a win 2000 server
machine. the error occurs when i am click and dragging the spectrum in
the bandmap screen.
I receive a "catastrophic error" pop-up window if I only click in grey
frequency band on the left of the map. The error only occurs if I
click and there is no dragging motion. However, if the mouse moves
while the left mouse button is depressed then there is no error. I
usually have to restart to reset the error.