DT Donate does not have a limit for this. It must be a limit from PayPal. I believe different accounts can have different limitations. Might want to check into this on that end. Thanks and let us know what you find out please.
Sorry I wasn\'t clear before. I\'m using authorize.net, and I have my site set up so that I have both pre-defined values, and an option for users to enter their own donation value. When I input the predefined values in the admin backend I can\'t put in a value greater than 5 digits.