Hehe.  As a newbie to this, I have this to say to other newbies to incubation.  After you sit there and STARE for a day or two waiting for even a wiggle (and seeing imaginary wiggles)..and after you sit with renewed intensity when you actually see a PIP....and if you should get complacent after four or five hours or so staring at the pips...I tell you this:  If you go out of the room for even 5 minutes, or if you spend a few minutes IN the same room busy on the keyboard there...and THEN look again...a chicken will have just hatched, and you've missed it.  Right?