Thank you Gervais,
I had thought about iframe to be able to control the sizes without having to use a complex layer arrangement, but I am not a big fan of iframes either, mainly because scrolling seems so quirky. These are appearing on a home page where current events will show in lists from the three calendars - kind of a current events page.
I guess my other alternative would be to re assign some of my categories. I don't have that many events in any one calendar, so that might be the easiest. All three calendars use like-named categories and colors.
Tell me if this would work - If I assigned the same stings (containing all categories) for "$epcCategories=" and "$epcCategoryColors=" in each calendar, and just deleted the categories that are not used on two of the calendars, would that be sound enough? I'm lucky at least in that I have the same basic categories on each calendar, just using fewer cats on two of them.
Of course, I would have to go back and reassign categories to existing events, but this would likely be the most sound way to correct this, would it not?