Awesome! It turns out there are a few issues that were introduced in 1.1.7.  I'll release a hotfix at Snowcovered soon, but until then, feel free to install the hotfix mentioned in this post:

http://dnn.itcrossing.com/Support/tabid/192/forumid/5/threadid/97/scope/posts/Default.aspx

Thanks for using metaPost!