Yes, the field is a VARCHAR(14) and it does show up in crystal as such.
if isnumeric(left({ContHist.DURATION},2)) then
tonumber(left({ContHist.DURATION},2))+tonumber(right({ContHist.DURATION},2))/60 else
tonumber(left({ContHist.DURATION},1))+tonumber(right({ContHist.DURATION},2))/60