I have Modular installed on my Mac with DP4 and 10.4 with Apple updates. It is the new standalone version downloaded from the website. It works fine unless I try to put in a different save name on quit. Untitled is fine and the exit is normal but if I change the name and try to save that the program generates an OS error on exit and appears to not save the file. Have written Arturia tech support about this months ago but they have not seen fit to reply.