What happen to cause my listings to show up in Canadian dollars instead of US. How can I change it back.

Check out this topic on the subject folkstone. Seems all of us Canadians are having this problem. There is a workaround, but you have to declare that you're items are in the U.S. to get your items listed in U.S. funds.

http://community.auctiva.com/eve/forums?a=tpc&s=34960459&f=745609321&m=732608827