Possible Printing Bug

If I open the properties window of a route, the toolbar gives me an option for "Print Setup". From here I go to "Print Map" and then to the print dialog. From this resulting dialog box an option to print to .pdf along with the usual .pdf options is opened. Selecting any of the options to save the .pdf in .jpg or .tff formats results in this error.



This would be a very handy process. Any idea why it's not working?

Mac Lion running BaseCamp 3.3.2.