BuddyPress.org

Hi,

I did the following to migrate to a new server.
assuming my url is http://www.xxx.com
1) i copied my entire directory (in my case under public_html) to the new server.
2) i created a new db on the new server and restored it from the old one (same username and password so wp-config.php does not need to change).
3) after 1&2 were completed i made the dns changes to point http://www.xxx.com to my new server.
changes took affect after some time but since then my main tabs such as groups, members, event etc are not available. when i click on them i get the message that the url is not available on the server.

I was under the impression that since i copied the folder and DB is a restore everything should work fine.
I am able to access the admin and my home page but pretty much nothing else.
have i missed a step here?
help is appreciated.

Thanks,

Shai