Do you know who's maintaining DOpus4 these days? There's a new bug/feature that's been in the OS4 version since it came into being years ago. Whenever you uniconify the program it reloads the directory windows. And if you're like me, you have DOpus auto start iconified (as window) at boot time. And if you're also like me, you have the default directories set to be blank/empty. And if you reload a blank directory (same effect as pressing Enter in an empty path string) DOpus will load the directory it was started from. So whenever I go into DOpus after boot I'm presented with SYS:DirOpus4/ instead of blank windows.
Would love to be able to go back to the uniconify behavior that the OS3 version had!