I completed a swing migration at the start of the week. All seemed to be ok appart from 2 mail boxes that didn't the move. I copied these to a PST, recreated the mailboxes on the new server and copied the contents back to the mailbox.
Also had an issue with public folders not moving but since they were not used did not worry too much. (I know now how wrong this was).
After removing the tempdc a few issues surfaced the main one being the slow boot time of the server (3-4 hours). IP6 is not disabled (the common cause of this problem). However I do beleive the cause is Exchange services starting up.
Have installed Exchange rollup 1 and in the processes of doing further SBS updates.
The server is a HP ML330 2.13 GHz 12Gb RAM.
The event logs do not show any Exchange errors!!
Any pointers where to look next would be appreciated.