I did that, but it revealed nothing out of the ordinary.
Though, I noticed this calendar list had 2 content types. An Event, which is obviously the standard. Also, Time Off Entry, which was set to the default content type. If I switched the default content type to event, the calendar could be viewed fine.
So, it looks like this custom content type isn't supported by the webpart, but is there any way that I could make this work?
Thanks again.
Ross