87 BMW 325e pwr windows dont work

I've done a couple older bimmers which had a window reset button on the dash or center console.  The button was not marked in any way, just a plain black button.  Scared the living daylights outta me though when I go to pull the car out and the windows don't move.  Tried checking all the fuses and everything I could think of, but in my curious nature I tried pushing that little button, and lo and behold, windows work again.  I'm not sure if its a safety lockout feature or what, but see if this applies to your car.Life moves pretty fast; if you don't stop and look around once in a while; you could miss it.

Haha.... yeah, thats the first thing I tried.  I was pressing buttons everywhere, hoping something would work.  I checked all the fuses and everything checks out ok.  One of the worst feelings in the world is trying to troubleshoot something right in front of a customer that should be working in the first place.