# Called on switching genre/category.
    # Either fetches new stream data, or displays list from cache.
    def load(self, category, force=False, y=None):

        # called to early
        if not category:
            log.ERR("load(None)")
            return
        self.current = category

        # get data from cache or download
        if force or not category in self.streams:
            log.PROC("load", "update_streams")
            self.status("Updating streams...")