bad pool caller BSOD

on win 7 x64 ultimate:

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 3081

Additional information about the problem:
BCCode: c2
BCP1: 0000000000000007
BCP2: 0000000000001097
BCP3: 0000000004300005
BCP4: FFFFFA8006741C50
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\112711-54725-01.dmp
C:\Windows\Temp\WER-56191-0.sysdata.xml

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C:\Windows\system32\en-US\erofflps.txt

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It's happening every 40 minutes or so.

Dump file: http://www.mediafire.com/?97yh0sh1yyp2x56

It's more than likely a driver related issue, but without knowing anything about your system it's hard to say for sure. You can analyze the *.dmp file yourself by following the instructions here...

BSOD ~ How to use Debugging Tools For Windows
http://forums.pcper.com/showthread.php?t=447620&highlight=mini+dump

The article links to the 32-bit version of the debugging tools, so since you're running the 64-bit version of Win7, download the x64 version of the tools package from here...

http://www.microsoft.com/whdc/devtools/debugging/install64bit.mspx#

The Windows Symbol Packages for Win7 are available at the link provided in the article...

http://www.microsoft.com/whdc/devtools/debugging/symbolpkg.mspx