Tonight TF has started crashing when I try to save a new gpx file. The message is "Run-time error '401': Can't show non-modal form when modal form is displayed." I have no idea what this is talking about. The program has been pretty stable for me for a long time. I'm running in Windows 7. I thought it could possibly be that I had too many files loaded, so I unloaded a whole bunch. But still doing the same. I also have a large number of user maps. But I wouldn't think that would be related. (And of course calibration info is lost if I remove them, although I think all of them are currently unchecked.) When I restart the program it seems fine, until I try to save a file. Actually the message pops up as soon as I go down into the particular directory that I want to save in. But it only crashes once I hit save. Has anybody seen something like this in TF before?