Pop-up menu positions (clim:menu-choose)

When I call clim:menu-choose explicitly, or use one of the implicit uses (e.g., right click on a presentation to get the command menu), the pop up comes up in the upper left hand corner of the screen, rather than something relative to the frame (or better yet, the pointer). This is true even when the :associated-window argument is supplied.

I'm imagining this is a bug: the behavior in other implementations is usually pointer relative. Does anyone know different? Is there a way to specify pointer-relative positioning and I'm missing it?

Thanks,
Brad Miller