Thank you so much for the advice, Darq. I did have ONE toon that somehow (I still am not sure how) I managed to get her merc window up, and I tried loading HER UI...and nothing came up. Finally, on the advice of a guildmate, I tried loading the default UI, and nothing came up. It was then that I came to the incredibly annoying solution of completely wiping my EQ2 folder and starting from scratch. After working all night and this morning, I am happy to say that it is finally working as it should. Thanks again for all your help, Darq. Apparently it was just a matter of file corruption, and not something on Savie's side. I figured as much, tbh - it seemed like very few people were having issues with merc windows still, so I deduced that it was most likely me