I recently installed kubuntu 7.04 for amd_64bit with KDE 3.5.6. I have got Genius KB16escroll keyboard. Some (not all) of special keys was working from the beginning. After approx. 5 days of work on kubuntu I run already preinstalled keytouch and created keyboard file with keytouch editor. Every specialkey was perfectly recognised. After closing keytouch, up and down arrow keys stopped working in every application and was not recognised by any (e.g. setting shortcuts in kde apps). Other keys and special keys was ok. xev could read scan codes of arrows properly. After complete uninstall of keytouch and complete reboot arrow keys was again working properly. Unfortunately I did not tested scroll wheel (keyboard wheel functions as arow keys). Keyboard file is attached.