Dang it ... I remember seeing this problem some months ago, probably in June, but now cannot remember how I fixed it. Therion 6.3.4+dev running on Fedora 43. In late December I worked on a cave map and had no problems with it. xTherion opened jpg files as backgrounds. Today I went back to that same map, and it will not load the background jpg files. It will open png backgrounds. The only error I can see is in the Background Images field. It shows the name of the jpg file and adds "(unknown)" at the end. I checked both tkimg and libjpeg. They are installed. What else is required for this to work? I started xtherion from a command shell. There were no additional error messages. Is there a log file somewhere that might give more clues? In early January I ran the usual update process for all packages. Both tkimg and libjpeg were updated. I don't see anything that was removed other than old kernels. Thanks! -- =============== Bill Gee