fatal exception OE O17F:BFF86EBD

fatal exception OE O17F:BFF86EBD occurs while start up most of the time. Tried removing inwanted start up file yet it appears at random.I have Assus A266 motherer board with built in Ge force 2 Graphics and AMD Duron processor.
Any one for help
ronenbose@muchomail.com
piu_pri@yahoo.com