Computer shuts down when put to sleep

This been happening more constant now, and I search everywhere. I think is the HDD or maybe my Ram, but I'm not completely sure. This is the prompt I get:

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1033

Additional information about the problem:
BCCode: a
BCP1: 0000000000000000
BCP2: 0000000000000002
BCP3: 0000000000000001
BCP4: FFFFF8000308092C
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\042413-31777-01.dmp
C:\Users\Louis\AppData\Local\Temp\WER-36831-0.sysdata.xml

Sorry here's my zip folder. Attachment 265471

Have a look here Blue Screen of Death (BSOD) Posting Instructions
and post the required info and we should be able to help more :)

Had a look at your dumps and they are all caused by the driver scmndisp.sys

This is a driver for Netgear Neutral Wireless Solution the driver is dated Wed Jan 17 07:48:03 2007, not sure how such an old driver got on your system but it actually predates win 7 so no suprise its causing you problems
Check out netgear site for your specific hardware and see what drivers/updates you can find

:)

Glad to hear you got it sorted :)