[ESS] ESS[R}: Evaluate region keyboard command

[Peter Geelan-Small]

G'day, Everyone.

I'm trying to find the keyboard command that you can use to send a
highlighted block of code from ESS to R for evaluation. I highlight a
block of code and then try C-c C-r or C-c M-r, which I found in the
documentation, but neither pair works. Can someone please shed some
light on this?  The commands C-c C-c for sending the paragraph that the
cursor is in and C-c C-j (or C-c C-n) for sending a single line of code
work perfectly well for me.

My set up is:
Windows XP SP3
GNU Emacs 23.1 (from Vincent Goulet's package)
ESS 5.4
R 2.10.0

Regards,

Peter Geelan-Small