I installed the patch and started tweaking the ENB settings in-game. Changing the settings works and everything, but some parts of the interiors were still dark. By the way, I forgot to mention that I had Realistic Lighting Overhaul and the ENB version made of RLO installed. To see if RLO had affected how the lighting works in the game, I uninstalled it and installed the ENB version for vanilla. This time, the lighting is much better, but not really to my tastes. I'll keep experimenting with the ENB settings and try different lighting mods to see if I can get an effect I really like. Thanks for the help!