Free/Busy info could not be retreived

[Rollo89]

We recently migrated from 5.5 to 2003. We have 2 different exchange servers
that are in the same site.

Users at location 1 can see other user's free/busy at location 1. Users at
location 2 can see other user's free/busy at location 2.

But users at location 1 cannot view user's at location 2 and vice versa.

Any ideas?

Thanks!