CPU 100 lag problem

[Firenotes]

This is the recent error I've gotten

Module Name: C:\Program Files (x86)\heRO\heRO.exe
Time Stamp: 0x49a4a4ce - Tue Feb 24 20:54:22 2009


Exception Type: 0xc0000005

0x005e8930 heRO.exe
0x005e7498 heRO.exe
0x0051730c heRO.exe
0x0057b681 heRO.exe
0x0057b454 heRO.exe
0x006a3ff6 heRO.exe
0x006b8c1c heRO.exe
0x753e339a kernel32.dll
0x772e9ef2 ntdll.dll
0x772e9ec5 ntdll.dll

eax: 0xfffffffc ebx: 0x1960c210
ecx: 0x1960c210 edx: 0xffffffa4
esi: 0x68b1dc49 edi: 0x23957f58
ebp: 0x0018fb40 esp: 0x0018f444

stack 0018f444 - 0018f844
0018F444 : 78 5E 59 1C 10 C2 60 19 E8 5E 13 1A 73 70 72 69
0018F454 : 74 65 5C BE C7 BC BC BB E7 B8 AE 5C B3 B2 5C B3
0018F464 : B2 5F BF E4 C1 A4 C0 C7 B1 CD 2E 73 70 72 00 00
0018F474 : 00 00 FF FF C1 2B 00 00 38 EE C4 20 F6 00 00 00
0018F484 : 06 00 00 00 10 65 BC 20 03 00 00 00 00 00 00 00
0018F494 : 29 00 00 00 48 EF 01 24 38 F5 18 00 77 6E 2E 77
0018F4A4 : 60 EB 01 24 18 00 00 00 7D 00 00 00 8C E3 2D 77
0018F4B4 : FC 52 FD 77 46 E0 2D 77 9C 01 AF 00 00 00 AF 00
0018F4C4 : 27 00 08 00 C2 2B 00 00 00 00 00 00 00 00 00 00
0018F4D4 : 02 00 00 00 01 00 00 00 28 00 05 00 C2 2B 00 00
0018F4E4 : BE D6 B7 CE 02 00 00 00 00 00 00 00 00 00 00 00
0018F4F4 : 28 64 BC 20 F8 03 00 00 10 00 00 00 B8 D7 BC 20
0018F504 : 00 00 00 00 30 EE C4 20 18 61 BC 20 30 62 BC 20
0018F514 : 90 EB 01 24 00 00 00 00 3C F5 18 00 39 9C 94 76
0018F524 : 90 F5 18 00 00 01 00 00 D5 71 32 77 40 00 00 00
0018F534 : 90 F6 18 00 90 F5 18 00 60 F5 18 00 DE 9C 94 76

Launch Info
0141 002C 002C 002C 002C 002C 002C 002C
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000

Job : Assassin