I created a dialog using the Resource-Manager. I changed the IDs in main.h. In the main.rc file, not always the defined IDs from main.h were used, so the program doesn not work any more. I changed the ID-numbers (e.g. 4007) in main.rd to the symbols (e.g. IDAP12) and it worked again.
please read this: http://forum.pellesc.de/index.php?topic=1537.0
you provide no details, or steps to reproduce it, so impossible to tell if it's a bug or not...