shell-mode autocompletion uglinesses

["Felix E. Klee" <felix.klee@inka.de>]

Hi,

there are two things that bother me enormously when using autocompletion in
shell-mode.
1. When I enter
     ls /usr/
   and press tab nothing happens. What I expect, however, is that I get a
   list of choices containing all files and directories in "/usr/".
2. Suppose my EMACS window is split horizontally with a shell in one buffer
   and a README giving me instructions in another buffer. When I enter
     ls /usr/in
   I see the following list in the *Completions* buffer:
     include/          info/
   Then I press "n tab" and the shell command expands into
     ls /usr/include
   as intended. Now, however, the *Completions* buffer is still there 
   although it is not needed anymore. How do I make it go away once I have
   finished my completion?
If I cannot change the above behavior I'd rather use tab autocompletion as 
implemented in my shell (BASH). Is this possible?

Felix