I recently upgraded to CB 13.12 and found some of my previous FLTK projects won't compile; a few will. They are all written with FLTK 1.3. The global and project search paths are the same - the entire settings are the same. I know its not the code because all the projects were compiled and ran previously with the old version of CB. I did however noticed when I Build->Clean a previously compilable project from the previous version of CB it won't compile with 13.12. Thoughts?