Hi Stefan -
Yes, I obviously should have mentioned the system I’m using.
(Sorry about the omission.)
I am running on 64-bit Ubuntu 16.04 LTS on a Thinkpad x220.
I do not believe that this Ubuntu install is using any kind of a
non-standard windows manager or desktop (but I don’t know
for certain because I didn’t set this machine up myself).
In general (other applications? other systems?), when a pop-up
menu is too tall for the screen, little scroll arrows appear at the top
and/or bottom of the menu, and you can scroll to bring off-screen
items onto the screen. In my case, the top of the pop-up menu
is at the top of the screen, and the menu just runs off the bottom
of the screen (as an ordinary window would if I dragged it down
so that its lower half were below the bottom edge of the screen).
I am running a stock fiji install (ImageJ 1.51s) that I downloaded
a few weeks ago, and that has auto-updated itself a few times
Thanks for any advice, mm.