Memory Error message

Hi all,


I'm not sure if I'm in the right place. but i have this problem. every time i load a game or some programs i get a message saying.


RUNDLL32.EXE


The instruction at 0x7c9100e8 referenced memory at 0x00f20010 the memory could not be read click on ok to terminate the program



Is there anyway i can fix this? with out reinstalling windows?


I hope you guys can help me.


I have windows xp pro sp3


amd board
amd cpu 4000