I am seeing a row of question marks (???????) instead of the base when I look at my Quantum table. What is causing this?
Resolving the problem
The question marks (????) are printed instead of the percentage when the base element is zero. Check the axis for any base element, including non-printing ones (.i.e. n11) that are returning zero. If the percentage value is too small and the decp setting is such that it is rounded to zero then the spechar character should appear which defaults to a question mark.