Jit.window visible bug on windows

Hi list,
When I send the message "visible 1" to a jit.window (visible or not) that is
located on a second screen the jit.window jumps to the main screen.

This happens on Win XP, Max 4.5.7, Jitter 1.5.2

See the patch to demonstrate the problem- move the screen to the second
monitor by clicking on the appropriate place in the ubumenu. Click on
visible 1.

This does not happen on macintosh.

Thanks. John