[ESS] Cant kill R -process

[Paul Leo]

Hi 
I've been giving ESS and emacs a try for a few weeks and found it quite
nice but I have ONE problem which is killing my progress.

I can't seem to terminate a R-command which is taking too long . I am
using ubuntu intrepid 64bit and the intrepid ports of ESS from CRAN
5.3.10-Intrepid and Emacs 22.2.1. When I run a command which takes a
long time the top line of command on the R buffer window ...
 File ......  iESS Complete In/Out Signals Help

are non-responsive .Actually this line on the R edit session is also
unresponsive and Emacs C- or M- also don't work.

 If there a way to stop a process that I have missed in the manual? ...
other that terminating the process id from a terminal!

Thanks
 Paul