I just installed Nedit 1:5.5-1-lubuntu1 on Ubuntu 6.10 (upgraded from 6.06). My Ubuntu installation is all defaults with the Gnome desktop environment.
When I start Nedit from the shell or the Gnome 'run application' dialog, nothing seems to happen. In the shell, the following appears:
X Errorr of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 70 (X_PolyFillRectangle)
Serial number of failed request: 310
Current serial number in output stream: 320
I thought installing the OpenMotif and LessTif libraries might be necessary, but this made no difference, nor did removing and re-installing Nedit afterward.
I will be happy to try or check anything else that may be of value. Contact steve10k at yahoo etc.