No routes??

[ril.kidd]

hello,
I have two ubuntu 12.04 linux servers running bird 1.3.8 and peered with 
each other.
The routes from each show in both routing tables.

I installed centos 6.3 on an (identically configured) different set of 
servers and copied the configuration files. I see peering established 
but no routes in both routing tables. It doesnt work when peered with 
the ubuntu servers either.
Please what may be wrong? Or am I just missing something?