BACKSPACE and DEL revisited

[Stephan E. Schlierf]

Hi there,

the problem of redefining BACKSPACE and DEL was already discussed. But
there is another behaviour (concerning BACKSPACE and DEL) I can't explain:
BACKSPACE and DEL work very well (and as expected) if you write "normal"
texts. But if you try to insert e.g. an index entry only BACKSPACE does
its job and DEL doesn't work.

Any ideas?

Thanks a lot

Stephan