Are you "adding" the 1D5, or "reseting" to 1D5?
I'm just using a script that says:
%DIE1 := 1D6%DIE2 := 1D6%DIE3 := 1D6%DIE4 := 1D6%DIE5 := 1D6
every time someone clicks on it, rolling five six sided dice. They all roll the same number.