GRUB, the boot loader found in most Linux distributions, lets you choose among operating systems and kernels installed on your box. Many people, however, fear that messing with GRUB may ruin their system, because of its many esoteric options, and configuration file text that often contains no help comments. QGRUBEditor can help you view and edit the GRUB boot loader from a graphical user interface.
If you have KDE and Qt 4 installed, you should have no problem installing and running QGRUBEditor. I downloaded version 2.5.0, which I easily installed and compiled in a Mandriva Linux 2008 system with these commands: