Hi Mark,

Am Mo den 27. Apr 2020 um 16:41 schrieb Mark Hindley:
> What does your .vimrc contain? In partcular do you have settings for guifont
> and/or guifontwide?

Good point. I have such a part since ages in my .vimrc and even don't
know the original reason:
```
set gcr+=a:blinkon0
set gfn=9x13
set guioptions=agimlTf
set guifont=Courier\ 10\ Pitch\ 10
```

> If you do, does removing them and using the default fix it?

Removing the second and forth setting helps indeed.

I am not sure why that made problems with GTK3 and did not with GTK2.

Regards
   Klaus
-- 
Klaus Ethgen                                       http://www.ethgen.ch/
pub  4096R/4E20AF1C 2011-05-16            Klaus Ethgen <Klaus@???>
Fingerprint: 85D4 CA42 952C 949B 1753  62B3 79D0 B06F 4E20 AF1C