I tested the "alt" warning light on the anunciatior panel during run up, and they all worked fine. However, no light went off during the flight or I would hvae noticed that the ammeter wasn't functioning earlier... kinda of a bad combination of things... but the plane was inspected and I was told that the belt to the alternator broke, which was the source of the problem apparently. No word on the anunciator panel..
On another note, I was doing a night flight last night (to be current for my Commercial/Instrument training), and during midflight the landing light stopped working... grrrr. It worked on takeoff, then sometime before landing it decided to quit... I'll say it's a little harder to do touch and goes with only runway lights going, but nonetheless it was good experience and my instructor was with me.