Version: K3b (using KDE 3.5.10) Installed from: Fedora RPMs The problem is not only with K3b. There are some other programs too. I don't remember now. When you close the program then the KDE crash handler says that a fatal error occured. "The application unknown (k3b) crashed and caused the signal 11 (SIGSEGV). Please help us improve the software you use by filing a report at http://bugs.kde.org. Useful details include how to reproduce the error, documents that were loaded, etc." If you want details it says : "Could not generate a backtrace as the debugger 'gdb' was not found."
If you want to get the crash information you need to install the "gdb" package (the GNU debugger)