[quote user="Joerg"]
We are also using option 2 and I don't know any other "default monitor" solutions. Other programs are starting within the main screen as soon as the second monitor has been removed. But don't know whether this is a Windows task or program task to discover available screen areas.
[/quote]
So far Pegasus is the only program I have that insists on opening in the absolute place where it last was located, even if that location doesn't exist any more (but obviously there are others out there). Everything else will open in a relative screen location. I've got a vague recollection there is (was?) a setting in one of the config files Dave mentioned years ago that switched opening from absolute to relative screen position - that required a manual edit ("hack") - but if it wasn't obscure then, it is (to me) now.
Possibly related is the fact that other windows (spell check, for example) pops up on the extreme left of my main monitor, in fact, half off the screen - I have to drag it back onto the screen to click "Start Check" - if I'm using two monitors in extended configuration and Pegasus is on the right (extended) monitor (move it back to the main monitor and it's fine). And, most notifications ("no waiting messages" message status if using selective mail download, for example) pop up in the main monitor regardless of where Pegasus main window is (however, if there are messages to list, that opens wherever the application window is located).
Perhaps the best (easiest) solution is just to run Pegagus in the Main (default) monitor - relative/absolute screen locations were originally coded back before extended monitors were "popular", and moving Pegasus off onto the extended 2nd monitor really confuses it.