Hello. I dn loaded mm 1.2 bout 2 days ago & it worked wonderful. Cool new features added to the gps heading & all the other menus. well tonight I tried to open mm nothing happened. So after a while I uninstalled it & reinstalled mm 1.1. It opened fine & is working fine. I read the other posts & was completely lost sum what. Can someone help me out in lyman terms?? Thanks Derrick