Avoid "Program Database for Edit & Continue" in VC 2003!

This option made me think I'm in Twilight Zone! The code behaves as not
intended, the breakpoints in the debugger get skipped, the only positive
thing about it is that the error is repeatable.

Consider the following code snippet (it may not produce the bug, but I
can't really post mine whole project):

f(1);
if ( q )
  f(2);

Ordinary person would think that f(1) will be called every time, but not
according to the debugger when certain option is chosen. Actually, f(1)
will *not* be called, but f(2) *will*. Go figure.