I have the same issue with the drop down box. I do not know how to fix that issue.

As far as Nevada chips I would sort them by city personally as I think it is the easiest way. Good luck with entering the chips it's very addicting and makes you want I buy more and more and keep entering them. Also once you eventually get them all entered I suggest printing a book (there is an option in the program) so that you can carry it in the car or especially the convention for example. Any way have fun!