Unfortunately, this is not the only problem .
All dialogs seem to be too big, for example the package organizer dialog is about 800x600 on win32 and bigger than 1024x768 on X11.
An example is the screenshot above, it shows the Find in Files dialog exactly as it appears on my screen. But if you look at this on win32 you see:
I am not sure if this is related to each other.
Matthias
Well, yes and no: The basic idea behind "fontzoom" is that layout has to be proportinally adjusted to current font size.
Means if it is designed to be 800x600 for standard window font, it can be easily too big in X11.
The only solution I can see is to make layouts smaller, with good reserve for "big font" environments...