Nedit will lock up my i686 pc using the current prebuilt on Fedora12 Kde. It locks up requiring a reboot every time I do the following.
1. nedit somefile.txt &
2. put mouse inside the text box
3. push the left mouse button
4. push the right mouse button
When it locks up the mouse will not move outside of the text box, and the keyboard no longer works. The only option is to reboot the pc using the power switch.