anyone know why a vmware window would go blank(black) after a while of being used?
usually it comes back alive when clicked into, but then sometimes it won't

lol i bet it's just the screensaver...

Just restart it. It happens to programs, esp if you have it running overnight or longer without touching it.

screen saver on them is set to none

check settings of the "power management", maybe less a screensaver, more a powersaver