I played Skyrim this morning, but when I tried to enter conversation with several npcs, the interaction indicator did not appear. This has occured with numerous npcs, including Eolrund Gray-Mane, several members of the Companions, and everyone inside the Bannered Mare. This bug is affecting quest-related npcs, making their quests unable to be completed. I tried reloading the game, along with rebooting it, but neither fixed the problem. Also, I recently installed SKSE and SkyUI. Could either one of those mods be a contributing factor? Any help is appreciated. Also note that this bug is occuring everywhere, in all cities and settlements. My pc specs: Windows 7 134 GB free space 12.0 GB RAM NVIDIA graphics card, Geforce GTX 570m