Seems to be fixed, thank you very much.

I have the same problem. In Item Details, only showing monthly calendar and in Configuration / Calendars:

# of Months in Future: 2
# of Months :2

The month titles don't match the months in calendar and the navigation to next actual and previous month is crazy.

ARTIO Booking Paid version
Version: 2.1.1
Date: 2013-07-24

Please help