pc-selection-mode in shell buffer

[Felix E. Klee]

Hi,

I enabled pc-selection-mode in EMACS 21.2.1 via Customize:
(custom-set-variables
 [...]
 '(pc-selection-mode t nil (pc-select))
 [...])
It all works fine except in the shell mode. Usually when I select some text 
and hit the delete key all the selected text is removed. This is, however, 
not the case in shell mode (M-x shell). Here when I select text and hit the 
delete key only the character at the mark is deleted. This inconsitent 
behavior is very annoying. How do I change it?

Felix