@Lempster and @brandon - quite right, my ID10T error. I am fully aware of the flag in the publication options to replicate schema changes, however as a quick test I used the GUI to make the change to the table (and MS's way of doing so is to create a temp copy of the table with the new change, copy everything into the temp table, drop the old table, and rename the temp to the original table). This is what generated the error I posted. My bad for not dotting my I's and crossing my T's - very lame :w00t:

Thanks for pointing this out.