@cpulvermacher
I've noticed, that problem mainly affects keys mapped to shift + blue arrow + key (lvl 4 keys from maemo hardware keyboard mapping). It also may have something in common with things like dead_tilde, dead_accucte, etc - characters, that - upon invoking - doesn't produce a ready-to-go character, yet, affect character pressed after. Those are only ones that PResence VNC got problem with.

As for other keys, it seems that it *does* respect Maemo keyboard mapping. In any case, option "bluetooth keyboard" in rDesktop, that I've suggested to analyze, allow usage of such characters in mention program (without it, it also doesn't work, like in PresenceVNC).

I hope it helps in tracking down the issue - also, thanks for Your continued support for PresenceVNC, despite- probably - limited time! It's absolutely best VNC client for Maemo.