Random Export Folders

Never in my life have I ever exported to the Documents folder on my C: drive. But now Premiere is defaulting every export to the documents folder. How does Premiere determine where it's going to send exports? Is there a place I can change the default export folder? It's very strange and has never happened until the latest update. It also loves to change my source settings from "In to Out" to "Entire Source", screwing up my exports and making my producer mad at me for the included graveyard. Where can I change these default settings?