Datacolor User to User Support Group.

Since adding a new display my profiles are switched the wrong way round. When I goto calibrate my old screen the application switches to the new monitor. Is there some way I can totally reset the application?

Yes, there are files that could be removed that might allow the software to get "unconfused" about these two similar displays. Resetting prefs at app startup (I assume there is a keyboard command of that under Windows, I'd start by holding down the space bar and see if that does it) would be the first thing to try. After that, it would require removing specific files: for that info a support ticket at datacolor.com would be the best assistance.