Are you on MAC or Windows?
Shall i understand, that you do have one preset, and you have not made a search in the preset browser where only one is found?
More detailed information please.
EDIT: If you does'nt have any presets, then perhaps it can help to delete the db.db3 file in the preset folder. Make a backup of the file first, just in case.
The file is located here:
OSX: /Library/Arturia/Presets
WIN: C:\ProgramData\Arturia\Presets
EDIT END
