PAC Display Window message

I just installed 9.4d and am having a strange issue. When closing a window, I get a “waiting for async operations to complete”. This keeps me from closing the window. I have to close and reopen the program to continue working. Any ideas? Bug? “Feature”? It is a problem at this point…thanks in advance!

Bug. Try not-yet-released as of this posting, 9.4e, in particular: B9.4e, found on [B][U]our ftp site here[/U][/B].