I've run into two problems. The first was that CK was crashing every time I tried to open a perk tree in the actors menu. I fixed that by opening the program as an administrator. The second thing that happened was that when I opened the perk trees, I got an empty dialogue box with no way of editing it. This was true even if I only ran with the Skyrim.esm data file. Google's no help, does anybody have any ideas what could be causing this?