The only reason I can think of that would cause it to change the number your putting in is if your trying to enter a number in one of the regions that is higher than the first number in the next region. Work backwards setting region 3 first then 2 and finally 1.
--Edit-- Also you don't want to just copy my numbers as they will be completely wrong for the lamp in your scene, just have a play with your own numbers.
Last edited by ckyuk; 28-10-2012 at 09:17 AM.