Pram reset

Having strange issues with apps launching or time/date getting skewed ? PRAM reset!

Apple stores all sorts of odd little config stuff like monitor placement and whatnot inside of the PRAM (or EFI now-a-days)

To reset:

Fully power off machine
with your right hand hold down Command+Option+P+R
With your left hand, power on the mac while continuing to hold that key combo down
After a minute or so, release the keys and the mac will boot up with the settings cleared