There is no difference between 'serial' and 'license'. The terminology is different, but the number is the same. It begins with FXBFD- followed by 5 groups of 5 characters, separated with hyphens. (i.e. in this format: FXBFD-xxxxx-xxxxx-xxxxx-xxxxx-xxxxx).

Some people are having problems entering the number. In these cases, please follow these guidelines:

* Firstly, ensure you have a recent version of BFD installed. Early 1.0.0.x versions of BFD are very fussy, we have made the process friendlier since.

* Make sure you type the serial in upper case. Type it *exactly* as it is written, including all hyphens. Make sure you are correctly differentiating between similar-looking characters: for example, between 1 and I, 0 and O, K and X, 8 and B.

* Try to press delete a few times before typing the serial into the entry field, in order to get rid of any possible lurking spaces in the field. (This shouldn't affect recent versions of BFD, but try it in case your license number box has unexpected invisible characters).

* Press [ENTER] after you type the username and serial in the text fields, and before you click [OK].

* Try using the standalone version to authorize BFD (once BFD is authorized for one version, it is authorized for all).