I get a stupid little bubble in my icon tray in bottom right of screen on xp pro telling me my hard drive is full.

I have 6 200gb hard drives all 99% full and one 80gb for windows which i format once a month to keep things nice,
I sthere any way to stop these damn annoying popups saying 'there is fook all space on drive Z, sort it out' they are DOIN MY HEAD IN lol