Whenever I try to add a moving average either to a screen or to a report, it always goes back to 4 periods; i.e., "MovingMean4(i6)".  It doesn't matter what number I put into the "Periods" box, it always comes up with "MovingMean4(i6)".  I followed the example in the Tips reports exactly and end up at the same place.  What's up with this?