hi James,
suggestions on doing these types of adjustments on a chart:
1) try to change the fonts while in the Design mode / tab of crystal
2) in Design mode, resize the inside box of the chart to allow more or less room for the labels outside of this box (i.e. the box that contains the gantt bars)
3) in the Chart Expert > Options > Layout turn off Auto-Arrange to see if that helps
cheers,
jamie