Went to the local camera store today to try a G5. They pulled one fresh out of the box, I slapped my 14-54 II on it with Lumix 4/3 adapter. G5 said "No lens attached or set Custom function to shoot with no lens". HUH? Tried re-mounting it again, wiggling the connections, etc, same thing. Tried my same adapter/lens combo on an OM-D and GH3 in the same store, no problems. What gives? Does the G5 need a firmware update or something?