I am in the processes of transitioning to 2007 sp1 from 2003 sp2.. I have
already started to move mailboxes and have mailboxes on both versions. All
end users are running Outlook 2003. Only a few IT users that run Outlook
2007.

The default OAL and generation are being done on one of the 2003 back end
servers, this server has been having issues with updating the GAL which seems
to only be resolved with a reboot.

Rather than troubleshooting the issue in 2003, the server should be
decomissioned shortly, I would like to move the GAL, OAB generation and
distro to the 2007 environment.

When is the "best" recommended time to perform this process during a
transistion? Any gotchas that I should watch out for?
Haven't heard of any but can't hurt to ask, any issues with Outlook 2003
clients pulling OAB and GAL from 2007?

Thanks in advance....

chris