When running an "xterm" with the following Arguments: xterm -fn 10x20 -rv -sb -tn xterm-color The backspace key no longer works as it did (or should) in "vi" Hitting backspace results in what you would get when hitting the "delete" key under some other "lesser" OS's. Hitting delete seems to invert the CaSe Of ThE TeXt. Removing the "-tn xterm-color" makes it behave, but it still seems like a bug, although rather minor..
This one bites me heavily. I didn't find any way to get all tools (vim, emacs, less, etc.) working together with a consistant, working Backspace and Delete mapping. This is BIG hassle...
*** This bug has been marked as a duplicate of 10462 ***
make sure you are not overriding XTerm's app-defaults with your own (/usr/lib/X11/app-defaults/XTerm).