Nah, can't be.
I remember there being a plastic layer (or whatever type of non-conducting material that is) on the backplate, which isolates it from any contact with your motherboard. No worries there Ellis.
EDIT: My bad, that's for AMD sockets But it's okay with Intel sockets as well. You've only got those 4 metal legs touching your motherboard (in that zone there are no contacts that could possibly come in contact with your backplate; other coolers have similar mounting solutions and they don't short any motherboards).
I thought it seemed a bit odd that there was a possibilty of it shorting due to the plastic type stuff on the backplate, but I wasn't sure entirely. Need to get overclocking this thing!