bsplayer hangs for no visible reason

as i said bsplayer hangs for some reason, it happens after more than hour of reproduction, and when few times double clicked to movie window (toggle between window and full screen), same problem occures when paused for few minutes. It occupise 100% of proccessor during that time and it is hard for me to kill it by ctrl+alt+del (computer is so burdened that it hardly can open task manager, i am waiting few minutes just to get task manager on the screen).
configuration:
ATI Radeon 7500 - catalyst 3.6 driver
Nforce2 chipset - Asus A7N8X Deluxe motherboard
Athlon XP 2000+
512 mb RAM
windows XP SP1