We've been 'clean' for a week now as far as the 'detected database server disconnects' go.
My initial attempt to bounce Baan did not work though. Wether all SM attachments weren't released or the corruption laid in the DD itself I never found out. I rebuilt the DD just in case and made sure Baan bounced clean by stopping and starting the app manually.
This seems to have done the trick.
Thanks for your help everyone. Kudos to NPRao. He actually pm'd me this solution right after my initial post, but I guess I _had_ to take the long way home.