Cstring instance declared, but "not found" while debugging *IMAGE

hi, i am some newb in MFC programming now dealing with some problems while learning other's codes



http://img145.echo.cx/img145/8175/cstring3uk.jpg

as you can see from the image, i am running debugging mode going step by step up to that yellow arrow (circled in red)
i noticed that in the "watcher" section at the bottom right it says the symbol "str" is not found
what puzzles me is that "str" has already been declared already (circled in red) and how is it possible that it cannot be found?
shouldnt it be some text? or at least empty text "" ?
i hovered my mouse over "str" and nothing came up :confused:
could it be some declarations i left out? i got no idea

please advise and enlighten me :wave:

- winxp
- VC6.0++, SP5
- MFC style

hey thnx for the reply , i discovered that a clean and rebuild did the trick! :clap: