yukop4, you shouldn't have to remove the config file but since you're having so many odd issues, try taking it out and see if that helps. Also,try running the app from x-term (open xterm and just type "flipclock") and let me know what the output that shows up is when the app locks up.
The background image fix that I implemented only resolves spaces that were in the filename, since that was the only problem that was actaully reported. Again if you run from x-term it will print out some debugging information about what background image it is trying to load; please let me know so that I can try and determine the cause of the problem and resolve it.
Has anyone else experienced any of these issues with the 0.1.6 build?