BSOD once a week

My system has been crashing once a week for about a month now.
It is just a little over a year old, Dell XPS8100, Windows 7 Home Premium, 64 bit.

Its becoming a little bit annoying.

Thanks if you can help.
Larry

Attached is the data requested.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 1033

Additional information about the problem:
BCCode: 70860002
BCP1: 0000000000000003
BCP2: 0000000000000002
BCP3: 0000000000000015
BCP4: 0000000000000000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 768_1

iaStor.sys the driver for Intel Matrix Storage Manager caused the crash
Update it in safe mode with networking Intel® Driver Update Utility

Code:

BugCheck 70860002, {3, 2, 15, 0}

Probably caused by : iaStor.sys ( iaStor+71681 )

You need to update your Intel Matrix to Intel Rapid Storage Technology. I had the same problem. It is confusing to know which driver to select because the name changed from "Matrix" to "Rapid Storage"

http://downloadcenter.intel.com/Deta...+RST)&lang=eng