problem with tables....
I had a very similar problem to the one laid out by digitalage with respect to log errors and some aspects of set up After fussing for several hours, I finally remembered that I was using prefixes for my Mysql tables... Not knowing how to make the prefixes explicit in the drupal-xxx-.cf files, I just added them directly to the table calls, so
....PREFIXmailfix_domains... and PREFIXmailfix_users...
solved the problem.
Hope this helps.