I work for a non-profit with a really old version of File Maker Pro and I am trying to create some calcuations. I want to calculate a date that is one day after the date in a specific field and then again 14 days later. I read the book which gave an example to compute a "payment due date" which was "purchase date + 30". When I tried to do the same thing but "+1" it did't even give me anything close to correct. I checked that the result should be a date and it didn't even spit out numbers in a date format...Help?