PBG4 12" Xmodmap doesn't work anymore

[Pander <pander@users.sourceforge.net>]

Hi all,

I had my PBG4 12" with Xmodmap configured just the way I wanted it and 
since a few weeks it doesn't work anymore. Konsole and Gnome Terminal 
don't react to xmodmap at all, only xterm is  (independend of running 
xmodmap) able to generate some special characters like æêëêî when I 
press the [Apple Meta] and some keys. My mode switch and multi key 
simply cannot be activated via xmodmap anymore.

Lately there have been a lot of postings on keyboard mappings. My 
question is, what is the best strategy to solve this problem. Where 
should I start because the emails on this subject are just too many to 
digest all.

In short: What is overriding Xmodmap and how can I still configure my 
multi and mode switch keys?

Thanks,

Pander