[Plugin: Collapsing Archives] Repeating Months

Hi,

When I upgraded to version 1.1 of Collapsing Archive my archive widget now produces a list with repeating months for each of the posts within that month. (http://www.librarywebchic.net/wordpress/) Also if I go to Settings > Collapsing Archives make changes and click update I end up with a blank screen (where the options should be) If I roll back to the previous version the problem disappears. Any ideas what is going on?