C-x 5 2 and 5 o

[Baloff]

Hello

C-x 5 2
C-x 5 o
does not move the cursor to the other frame. once I finish writing the
command it shows "C-x 5 o" in the mini-buffer of the other window but
the cursor stays in the first window. my emacs version is 21.4a-1
under Debian testing. 

another thing, does C-x 5 o suppose to work even if the other emacs
frame is in a different processor?

thanks