emacs gud window use

How do I customize which window GUD will use when i issue co开发者_如何学编程mmands - 'up', 'down', etc ? It seems to use an arbitrary window, sometimes even the window with gdb in it - I want to be able to specify a specific window to be used.

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Have you considered borrowing the key bindings mentioned in the following question? Emacs, switch to previous window

This question implies that GUD steps on some things if you don't add a parameter. Maybe your command bindings are being affected similiarly.
Using gdb in Emacs 23

I asked a buddy of mine about this issue and here is what he said.

Well, we used xemacs and so it's not exactly apples to apples here. I do have gnu-emacs installed on cygwin and I can't replicate his problem. I think he definitely needs to list a version # for emacs and the version # for all his installed packages.

When you press up/down it calls 'previous-line' and 'next-line' respectively which both move the cursor in the default buffer. The only thing I can think is that he has something running that switches buffers (lisp 'set-buffer') temporarily and maybe doesn't set it back or errors b/f restoring the buffer? Better to use 'with-current-buffer' (or one of the other with-* forms) that saves the current state of the ui runs your lisp code and restores the ui state.