Kernel data inpage error

Hi,
my pc turns to blue screen and display error KERNEL DATA INPAGE ERROR almost everyday.
I just dont know what to do.
please help me.

I attached my minidump file.
TQ
 
This is my summary of dump file.
I cannot upload my dump file because of error uploading file

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Dump File : 103012-16567-01.dmp
Crash Time : 30/10/2012 10:22:49 AM
Bug Check String : KERNEL_DATA_INPAGE_ERROR
Bug Check Code : 0x0000007a
Parameter 1 : 0xc063c560
Parameter 2 : 0xc0000185
Parameter 3 : 0xcd0a38c0
Parameter 4 : 0xc78ac000
Caused By Driver : ntkrnlpa.exe
Caused By Address : ntkrnlpa.exe+dee98
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7601.17944 (win7sp1_gdr.120830-0333)
Processor : 32-bit
Crash Address : ntkrnlpa.exe+dee98
Stack Address 1 : ntkrnlpa.exe+a3442
Stack Address 2 : ntkrnlpa.exe+a6d25
Stack Address 3 : ntkrnlpa.exe+90446
Computer Name :
Full Path : C:\Windows\Minidump\103012-16567-01.dmp
Processors Count : 2
Major Version : 15
Minor Version : 7601
Dump File Size : 161,168
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