Windows XP 64 Crash reports

[glhglh]

i have been having two to three crashes per day. here is what the crash dump says.

i don't know what it means.

SYSTEM_SERVICE_EXCEPTION (3b)
An exception happened while executing a system service routine.
Arguments:
Arg1: 00000000c0000005, Exception code that caused the bugcheck
Arg2: fffff97fff0d6bad, Address of the exception record for the exception that caused the bugcheck
Arg3: fffffadf8a54b420, Address of the context record for the exception that caused the bugcheck
Arg4: 0000000000000000, zero.

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




EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at "0x%08lx" referenced memory at "0x%08lx". The memory could not be "%s".

FAULTING_IP:
win32k!GetDCEx+394
fffff97f`ff0d6bad ?? ???

CONTEXT: fffffadf8a54b420 -- (.cxr 0xfffffadf8a54b420)
rax=0000000000000001 rbx=fffffadf9b8a9bf0 rcx=fffff97ff7d64100
rdx=0000000004939c30 rsi=000000000dc43ab0 rdi=0000000000000020
rip=fffff97fff0d6bad rsp=fffffadf8a54bc38 rbp=fffffadf8a54bcf0
r8=fffffadf98876af0 r9=fffffadf9b8a9bf0 r10=fffff80001175180
r11=fffffadf9b8a9bf0 r12=000000007ef80000 r13=000000000ec9fd00
r14=000000000ec9f110 r15=0000000078b83980
iopl=0 nv up ei ng nz na pe nc
cs=0010 ss=0018 ds=002b es=002b fs=0053 gs=002b efl=00010282
win32k!GetDCEx+0x394:
fffff97f`ff0d6bad ?? ???
Resetting default scope

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: DRIVER_FAULT

BUGCHECK_STR: 0x3B

PROCESS_NAME: iexplore.exe

CURRENT_IRQL: 0

LAST_CONTROL_TRANSFER: from 0000000000000000 to fffff97fff0d6bad

STACK_TEXT:
fffffadf`8a54bc38 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : win32k!GetDCEx+0x394


FOLLOWUP_IP:
win32k!GetDCEx+394
fffff97f`ff0d6bad ?? ???

SYMBOL_STACK_INDEX: 0

SYMBOL_NAME: win32k!GetDCEx+394

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: win32k

IMAGE_NAME: win32k.sys

DEBUG_FLR_IMAGE_TIMESTAMP: 45e6f310

STACK_COMMAND: .cxr 0xfffffadf8a54b420 ; kb

FAILURE_BUCKET_ID: X64_0x3B_win32k!GetDCEx+394

BUCKET_ID: X64_0x3B_win32k!GetDCEx+394

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

kd> .cxr 0xfffffadf8a54b420
rax=0000000000000001 rbx=fffffadf9b8a9bf0 rcx=fffff97ff7d64100
rdx=0000000004939c30 rsi=000000000dc43ab0 rdi=0000000000000020
rip=fffff97fff0d6bad rsp=fffffadf8a54bc38 rbp=fffffadf8a54bcf0
r8=fffffadf98876af0 r9=fffffadf9b8a9bf0 r10=fffff80001175180
r11=fffffadf9b8a9bf0 r12=000000007ef80000 r13=000000000ec9fd00
r14=000000000ec9f110 r15=0000000078b83980
iopl=0 nv up ei ng nz na pe nc
cs=0010 ss=0018 ds=002b es=002b fs=0053 gs=002b efl=00010282
win32k!GetDCEx+0x394:
fffff97f`ff0d6bad ?? ???