Bc2000 (for the BCF2000 & BCR2000)

Yep, the person you bought it from could've changed the functions of the buttons.

//offtopic on

You can change the function buttons to normal CC-sending buttons in a software like BCManager.

If you're doing so, you have to rely on a computer and always send a STORE-sysex file for storing presets. 
(Cause you don't have a store-button anymore)

//offtopic off