I had 4.1.0 running on RH7.2 with KDE 2.2.2. Upgraded X to 4.2.0 by following installation instructions. Now, in runlevel 5, by default twm desktop comes up. If I boot in runlevel 3 and then start X manually with 'startx', KDE starts up properly. I have spent hours and days searching thru documentation and list archives but cannot find a solution. My /etc/X11/xinit/Xclients file has an 'exec startkde' but I found this file does not get executed at all, nor does the xinitrc in the same directory. And there is a file called /etc/X11/prefdm which executes /usr/bin/kdm and I think that is what is happening. If I replace the /usr/bin/kdm in this file with /usr/bin/startkde it goes into some loop with an error saying "Id. Respawning ... please wait for five minutes'. How do get kde to startup by default in runlevel 5? If anybody knows the solution or has a clue, please help me. Will appreciate any kind of help. Milind