[orca-list] confused on keystroke for accessing child window

[Krishnakant <krmane openmailbox org>]

Dear all,
I am wondering if alt + grave is not the combination for accessing 
unfocused child windows?
I tryed it but it does not work.
Let's say I am using pidgin and a chat window opens.
How do I navigate between the pidgin try and that chat window?
I thought alt + grave should do it but it is not working here.
happy hacking.
Krishnakant.