I was able to find back versions: I had .60, .62, .78, .82, .108, .117, .122, and .125. ALL of the versions keep Find and Run Robot running on the taskbar when I double click on the program name in the main file area. However, there WAS a difference in behaviour between versions .82 and .108. Prior to version .108 when I double click, FARR's window goes to the small window briefly, jumps back to the larger size with the filenames below and THEN runs the program I selected. From version .108 on it just shrinks to the edit box and then runs the program.
Hope this helps. I'm going to reinstall the most recent version again now - I'm addicted.