Here's a little screen shot where I select a few text clip boxes: http://gallery.me.com/norrkross#100068
Does it not work like that when you try it?
A workaround is to create a copy of the app. Simply select it in Finder and then choose "Duplicate" from the File menu. You'll be asked for and administrator password. After making the copy you can drag the old one to the trash and optionally rename the new one. This fresh copy will have read access for all files for you.
Thanks for the bug report, and sorry for the inconvenience,