Sorry to hear my quick fix didn't work. I don't remember if it said in the article I linked, but the guy told me I should restart after deleting the preferences. You're issue might be a little different than mine was because in my case, when I clicked on anything it would un-simulate. So if I clicked on the Pose room tab I would be on frame 30 in the Pose room but no simulation would show. Also when I clicked render in the cloth room, it would render, but it would render with the cloth unsimulated.