Outlook 2011 Rules won’t choose correct folder

I am creating rules for my new Outlook 2011 setup. After creating 4 rules successfully, suddenly I can't choose the correct folder to "move" or "copy" messages to. When I choose "move" and select "Choose Folder," a search box comes up. But when I type in the name of the folder I want, Outlook can't find it. This happens even when I'm looking right at the folder in the navigation pane--and even if I choose a folder that I have successfully chosen for a previous rule.

I tried quitting and also restarting my computer, but neither of them fixed the problem. Any guesses? Thanks for your help!