Okay, I usually don't do this but... When I was in 7th & 8th grade, we played an educational game on the AppleIIgs (I think it was the IIgs.) You played a detective uncovering a mystery in a department store. You went to different people and asked them questions, and they gave you different math problems. Once you solved the problem you had to find another person to interview and they'd give you a different problem. I remember the store had 2 floors. When you won the game you flew off in a hot air balloon (if I remember correctly.) The graphics were all wire frame, black and white. I think it was on a double sided 5.25 floppy (actually that rules out a IIgs, doesn't it?) It's not Carmen Sandiego, I know that much. Can anyone name that game?