Crash Problem

Recently when I play WoW(World of Warcraft) the computer crashs.

This is the minidump I got:

Microsoft (R) Windows Debugger Version 6.6.0003.5
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\WINDOWS\Minidump\Mini030606-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows XP Kernel Version 2600 UP Free x86 compatible
Product: WinNt
Built by: 2600.xpclient.010817-1148
Kernel base = 0x804d0000 PsLoadedModuleList = 0x80545b28
Debug session time: Mon Mar 6 16:14:07.748 2006 (GMT-8)
System Uptime: 0 days 0:14:00.334
Loading Kernel Symbols
............................................................................................................
Loading User Symbols
Loading unloaded module list
........
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck D1, {e, 2, 0, e}

Probably caused by : PCIIDEX.SYS ( PCIIDEX!BmArm+2a )

Followup: MachineOwner
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kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high. This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.
Arguments:
Arg1: 0000000e, memory referenced
Arg2: 00000002, IRQL
Arg3: 00000000, value 0 = read operation, 1 = write operation
Arg4: 0000000e, address which referenced memory

Debugging Details:
------------------


READ_ADDRESS: 0000000e

CURRENT_IRQL: 2

FAULTING_IP:
+e
0000000e ?? ???

PROCESS_NAME: WoW.exe

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: DRIVER_FAULT

BUGCHECK_STR: 0xD1

LAST_CONTROL_TRANSFER: from 804d7c50 to 804fc1bb

FAILED_INSTRUCTION_ADDRESS:
+e
0000000e ?? ???

STACK_TEXT:
f794aa90 804d7c50 0000000a 0000000e 00000002 nt!KeBugCheckEx+0x19
f794aa90 0000000e 0000000a 0000000e 00000002 nt!KiTrap0E+0x2ad
WARNING: Frame IP not in any known module. Following frames may be wrong.
f794ab1c 0252bf00 00000012 0252bd40 00000012 0xe
f794ab8c f77afbbe f763f6b0 00000010 82af0580 0x252bf00
f794abac f73cd0d4 82a77d08 82a79af0 82a90a01 PCIIDEX!BmArm+0x2a
f794abec f71941b7 82a90ad8 82a77d08 00000103 NDIS!ndisMProcessDeferred+0x37
f794ac20 f73b8c6d 827dadb0 82a77d08 00000082 psched!MpSend+0xab1
f794ac40 f2fbf6b5 82ac6eb0 82a77d08 829bfbe0 NDIS!ndisMSendX+0x125
f794ac68 f2fbf757 829bfbe0 82a77d08 823fb280 tcpip!ARPSendData+0x181
f794ac90 f2fbe13f 829bfb02 823fb294 00000001 tcpip!ARPTransmit+0x72
f794ada0 f2fc20ff f2ff53b8 023d81e8 823d8180 tcpip!IPTransmit+0x59d
f794ae08 f2fc0f73 000005b4 00000002 00000000 tcpip!TCPSend+0x57a
f794ae2c f2fc0767 00000002 00000002 00000000 tcpip!ProcessPerCpuTCBDelayQ+0x91
f794aea4 f2fbf2f0 f2ffd860 00000000 804ebc14 tcpip!TCBTimeout+0xad6
f794aeb0 804ebc14 f2ffd870 f2ffd860 0d0f27c8 tcpip!TCBTimeoutdpc+0xb
f794afb4 804eaa97 f4e0f06a 00000001 ffdff000 nt!KiTimerListExpire+0xf3
f794afe0 804f02eb 80544a20 00000000 0000d215 nt!KiTimerExpiration+0xb0
f794aff4 804effd3 f0354d44 00000000 00000000 nt!KiRetireDpcList+0x30
f794aff8 f0354d44 00000000 00000000 00000000 nt!KiDispatchInterrupt+0x2a
804effd3 00000000 00000009 bb835675 00000128 0xf0354d44


STACK_COMMAND: kb

FOLLOWUP_IP:
PCIIDEX!BmArm+2a
f77afbbe 5f pop edi

FAULTING_SOURCE_CODE:


SYMBOL_STACK_INDEX: 4

FOLLOWUP_NAME: MachineOwner

SYMBOL_NAME: PCIIDEX!BmArm+2a

MODULE_NAME: PCIIDEX

IMAGE_NAME: PCIIDEX.SYS

DEBUG_FLR_IMAGE_TIMESTAMP: 3b7d83e2

FAILURE_BUCKET_ID: 0xD1_CODE_AV_BAD_IP_PCIIDEX!BmArm+2a

BUCKET_ID: 0xD1_CODE_AV_BAD_IP_PCIIDEX!BmArm+2a

Followup: MachineOwner
---------

I will really appreciate if anyone can tell me whats causing this problem.
Thanks