Annotate editor in Application Profiler

I am using QNX 6. I am facing a problem with the Annotate editor in application profiler. When I try to check any function in the editor, it gives an error “No source found”. I have checked the path of the source files and it is proper.
However it works fine for the sample program. I have used the app profiler for my programs earlier and did not face this problem then.
Any clues would be helpful.