Apologies for intruding but I am having the same problem and thought I might add some observations of my own that may help identify problem.
In my case, I'm publishing minor updates to MOSS and mixing columns from my template with columns from sharepoint. As with Michael65, I lose all column Views and the column info
When I select 'Edit Properties' or Open the form or 'edit in browser' options for each document, all column info is restored. This has to be done with every document though.