Version: 3.0.0 (using KDE 3.0.2) Installed from: SuSE Compiler: gcc version 2.95.3 20010315 (SuSE) OS: Linux (i686) release 2.4.18-4GB When I start gideon, the only thing which I get is a small screen with the menu's File, Help and Window. There is only one Icon on the toolbar (open project), I the File menu I can't create a new project or whatsoever. I do not get a slpash screen. I am using SuSE Linux 8.0, KDevelop 2.1 runs perfectly (I don't think they interfere) Furthermore, I have put gideon in the /opt path. I did run configure, make and make install, with no errors nor serious warnings.
Gideon cannot find the plugins. Don't install it in the /opt path but in the path where KDE is installed, in your case /opt/kde3. Gideon and KDevelop 2.x won't interfere.