bluescreen - please help me with these dump

hello everybody

all day i get a bluescreen.
i have this minidump, who can help me ?????

0: kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

PAGE_FAULT_IN_NONPAGED_AREA (50)
Invalid system memory was referenced. This cannot be protected by try-except,
it must be protected by a Probe. Typically the address is just plain bad or it
is pointing at freed memory.
Arguments:
Arg1: e4081000, memory referenced.
Arg2: 00000000, value 0 = read operation, 1 = write operation.
Arg3: bf965a07, If non-zero, the instruction address which referenced the bad memory
address.
Arg4: 00000001, (reserved)

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


Could not read faulting driver name

READ_ADDRESS: e4081000

FAULTING_IP:
win32k!vSrcCopyS4D24+1c0
bf965a07 8b0e mov ecx,dword ptr [esi]

MM_INTERNAL_CODE: 1

CUSTOMER_CRASH_COUNT: 2

DEFAULT_BUCKET_ID: DRIVER_FAULT

BUGCHECK_STR: 0x50

PROCESS_NAME: WINWORD.EXE

LAST_CONTROL_TRANSFER: from bf839e20 to bf965a07

STACK_TEXT:
a8f08550 bf839e20 00000010 820bdc30 e3f8fd08 win32k!vSrcCopyS4D24+0x1c0
a8f08764 bf02a89c e3f8fd08 00000000 a8f08acc win32k!NtGdiAlphaBlend+0x295
WARNING: Stack unwind information not available. Following frames may be wrong.
a8f0878c bf02a4f8 e3f8fd08 e4073850 a8f08acc igxpgd32+0x689c
a8f08970 bf03e20d e3f8fd08 e4073850 a8f08acc igxpgd32+0x64f8
a8f08998 bf018e8d e3f8fd08 e4073850 a8f08acc igxpgd32+0x1a20d
a8f08a54 bf805d3a e3f8fd08 e4073850 a8f08acc igxprd32+0x6e8d
a8f08aa0 bf8334bb e3f8fd08 e4073850 a8f08acc win32k!DC::bCompute+0x1a6
a8f08be0 bf8e1048 00000001 e3885540 00000000 win32k!ulIndexedGetMatchFromPalentry+0x50
a8f08c4c bf95af4d 0d050864 0d050864 00000000 win32k!itrp_ISECT+0xb5
a8f08c88 bf91b757 0b01085d 0d050864 00000000 win32k!MulAlphaBlend+0x25b
a8f08cc4 bf91bc3c 00000010 00000000 a8f08d30 win32k!xxxCompositedPaint+0x60
a8f08ce8 bf8e1d7d 821236d8 00000228 821236d8 win32k!StartScreenSaver+0x41
a8f08d04 bf8e1ded 821236d8 00000002 a8f08d30 win32k!xxxScrollWindowEx+0x38
a8f08d54 8054060c 00000002 0013f2bc 0013f2e8 win32k!xxxScrollWindowEx+0x134
a8f08d64 7c91eb94 badb0d00 0013f2ac a9e8a54a nt!RtlIpv4StringToAddressA+0xfd
a8f08d78 00000000 00000000 00000000 00000000 0x7c91eb94


STACK_COMMAND: kb

FOLLOWUP_IP:
igxpgd32+689c
bf02a89c ?? ???

SYMBOL_STACK_INDEX: 2

SYMBOL_NAME: igxpgd32+689c

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: igxpgd32

IMAGE_NAME: igxpgd32.dll

DEBUG_FLR_IMAGE_TIMESTAMP: 4526c948

FAILURE_BUCKET_ID: 0x50_igxpgd32+689c

BUCKET_ID: 0x50_igxpgd32+689c

Followup: MachineOwner
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