Hmm... Nope. One of the screws took a little bit of effort, but they all went in without having to enlarge the holes on the board. I was scared of that too, but it seemed to work fine. You probably did it this way, but if not, try only slightly threading each screw so the board is loose and you'll have some room to wiggle before you tighten them down. Oh, and don't swap the screws, use the MkII screws on the MkII case. etc...