Hi Ezra, and list, Is there something fishy with the Merb-included migration? I ran it, and MySQL complained. I removed this line, by commenting it out: # t.column :id, :integer, :null => false (Since Rails migrations that create tables always create an auto- increment as primary key, but they do use the NULL thing, so when you pass in a null, things happen "the way MySQL users will expect them to happen") Apologies if this is a known issue. I just downloaded Merb 25 minutes ago, so I am quite fresh at this. best regards, and I love Merb (it seems neat), Olle Jonsson Copenhagen