Ok I have tried opening mad mapper to an empty file with just a dvi cord, that works. Then moving to a 2 projector set up works with new files. I think maybe opening my file and having it full screen on two screens then crashes MM and causes problems with it starting up again.. so it may be a proble...
Hi
I am also having this problem.
3.7.4 on windows 10 pro 1909 intel i5-8400 @2.8ghz, 16gb ram, geforce gtx 1060 gb ram. Ive tried restarting and reinstalling this version and previous version of mad mapper. I have also submitted a support ticket.