i can't get my upcoming events to show in Feedburner using the event calendar plugin for wordpress.
Feedburner only shows the feeds that are not upcoming events (that means normal posts without a timestamp in the future)

is there a known problem with this plugin together with feedburner?
what is the solution?

Plugin:
event calendar plugin 3.1.1._rc3 Patched for wordpress 2.5 Original version on Event Calendar Patch on wordpress 2.5 and Event Calendar | Williams Writing, Editing & Design Blog