EventCalendar generates prev-next links forever

The Calendar plugin displays links to the previous and following months in the html calendar. The problem is that these links are generated for every month, creating pages like Main/EventCalendar?month=-1258. This is bad for search engines, as they are trapped on the same page forever and ever and ever...

The calendar plugin should have a parameter telling how many months before and after it should display links to. For example, when displaying the table for ?month=-12, there will be no link to the previous month.