Tax Code Description wrongly picking in VF02 in Print Output

Hi,

I have created a new Tax Code (Output Tax CST 5%) and given the description in the Tax Code. When I print the Sales Order, the print preview shows correct description of the tax code. But when checking print preview in VF02, the description is not the same as created. The description in print preview is showing as CST against "C" Form  5%. Please suggest what can be the problem.