FYI: Peak Data has an enhancement (source code) to print checks in vendor name order along with several other nice additions @ $995 plus annual maintenance. Source code, though, is a bit of a dead end, as Macola ES will not have source code distributed to the dealer channel at all. I would assume that a Flex app could be written to print the checks in vendor order. And, if you want to change vendor numbers, Alembic Computer Systems has an enhancement @ $995 to change vendor numbers anytime you like as well.