Checked Nvidia control panel, nothing looks forced, things are left up to applications. The updater was crashing instantly so I tried a fresh copy of the game, updated, same problem in the game even with default in-game settings. I can get one or two 1 frame flashes on the pre-mission screen, then just black. If I can find any solutions on my own by messing with things, I'll post it.Found the problem (sort of). Alberic's Curse mission was causing the problem. Other missions work fine, but the pre-mission menu for that one mission causes a black screen. No idea why, I'll try uninstalling it and re-downloading it.