Debugging problem with CW 9.5 and Tiger

I'm having basic debugging problems building a Carbon app on Tiger with CW 
9.5.  In my main function, I have the following line:

OSErr err = noErr;

However, the debugger always shows the value of err = -868, even after I
set 
it as the return value from other functions.  Optimizations are turned
off. 
I'm also getting bus errors.  Do I need to go back to OS 10.3.9 to get the

CW debugger to work?

Thanks,

-- 
Brian J. Leader

brian@[EMAIL PROTECTED]