Make sure that Common Anode = checked.
Please post a picture with it both checked and unchecked.
I've attached some pictures with it on and off. I also tried playing with the numbers mentioned by Iceman but didn't have much luck, it just changed the position of numbers and with no reference of what was what it was hard to work out where they should be. The screen went through the below (I missed some, changing every minute).
Example of some of a set: