After upgrading RH 5.2 to XFree86-Mach64 3.3.3.1-1. The backspace key has stopped working in various apps. Specifically in "konsole" hitting backspace results in a '~' showing up on screen. (KDE 1.1) "netscape" hitting backspace, causes the char to the right of the insertion point to be deleted. This might be related to Bug#972. "xterm" hitting backspace, works NOTE: This problem didn't exist before installing the X update
We are not able to duplicate this problem with a stock 5.2 install even when installing KDE. It was probably a non-standard keymap setup before the upgrade.