User blog comment:Jimeee/Skyrim 1.9 beta update adds Legendary difficulty and raises level cap (Updated Apr 8th)/@comment-79.103.57.42-20130305135233/@comment-96.33.153.196-20130306072211

Weird, I've been playing again since downloading all 3 addons with no problems. Maybe you need to blow the dust out of your machine.