Just a thought:

I am trying out the Bluefish HTML editor but it requires libaspell15, and that conflicts with libpspell4 which as far as I can see, is only being used by Abiword. Since Knoppix already includes OpenOffice and KWord, I figured I wouldn't miss yet another word processor, so I removed Abiword and libpspell4.

Kbear's a little trickier: Latest version requires Qt3 and that can't be installed onto a stock Knoppix system because it conflicts with other files also. Haven't quite figured a workaround for this so meanwhile I have installed gFTP instead. Thought to install an earlier-version Kbear .deb package but LOTS of unmet dependencies there, and fixing them gets messy.