http://i1012.photobucket.com/albums/af244/judeferguson42/2012-12-16_00022.jpg started right after I finished Snow Veil Sanctum and talking to Karliah, and now it won't go away. Right before it appeared, I saw this:

" was equipped."

No actual item listed, just that. Also, while doing the Vaermina quest I CTDed twice in a row after quicksaving