Keep getting following - have reinstalled, rebooted, no go!!

can someone help: thanks

LIMEWIRE executed an invalid instruction in
module <unknown> at 0000:00000053.
Registers:
EAX=00000051 CS=0167 EIP=00000053 EFLGS=00010202
EBX=00002778 SS=016f ESP=04adf980 EBP=04adfc38
ECX=04adf98c DS=016f ESI=00883b40 FS=3ae7
EDX=81668f84 ES=016f EDI=04adfc34 GS=536e
Bytes at CS:EIP:
f0 40 02 0a 05 2d 04 70 00 28 0a 0d 06 a4 e7 00
Stack dump:
76003481 04adf98c 00883b40 00883b40 76002881 008067e0 024b3c78 008067ec 76002d66 024b3c78 04adfc34 0115d8a8 75fe121a 00002736 04adf9e4 00000034