Hello! I just got MM V2 yesterday, and when I installed the CD, my mac mini would not even read the disc. I left a message on the support page, and did not hear back yet, so I went to the download page and downloaded two files. First I got the mmv2_update_mac.sit file. At first I could not open it, so I went to apple.com and got a free file called The Unarchiver. This unarchiver program "un-packed" the Stuffit (.sit) file into a folder. I then ran the unpacked file, and now the mac mini could read the MM V2 disc!! I then installed V2. It gave me an error and the program quit immediately. Next I ran the second file, Mg_Modular_V_2_2.dmg. This installed the version 2.2. This program ran. Now everything if fine, at least for the first day. Hope this helps someone.