It bears asking: is your DPS stat in your in-game persona window (under autoattack heading on the stats pop-out) non-zero? DPS is a statistic that boosts your autoattack damage, but at the lower end it's not common so it may be that the stat is actually zero. The DPS stat is not your damage per second that you'd see in ACT for example, your total damage per second is not tracked within EQ2 at all. It's possible you might be confusing the two.
If you have a non-zero DPS stat in your persona window and it's still showing up as 0 on the G15 then it may be an issue with the dynamic data, but lets check the simplest possibility first.
__________________
|