Hi everybody: I'm new to Arduino and programming, but reasonably good in electronics. I' m interested in the frequency counter of MARNAW, so I downloaded the two source code Zip files in both , the sketchbook and into Arduino-0017,/hardware/libreries ( to be on the safe side). The I just copied the original Marnaw's Example Program into my sketchbook . But it didn't work: as soon as I try to compile it, I get the following message: “ Error: 'Void' does not name a type” on line 2. :o I'm think I'm doing something wrong, but what? Can someone help me?