BSOD problem

To cut it short:

BSOD has showed several times up to now and this is all the info I have about it. I'd be very grateful if someone could help me with the problem because I have no idea what to do.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1050

Additional information about the problem:
BCCode: 1000007e
BCP1: FFFFFFFFC0000005
BCP2: FFFFF800032872BD
BCP3: FFFFF880037CB588
BCP4: FFFFF880037CADE0
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\120511-19905-01.dmp
C:\Users\Foxy\AppData\Local\Temp\WER-40076-0.sysdata.xml


~ additional info about my laptop:

Acer Aspire 7741G with Windows 7 Ultimate
Intel Core i5-450M processor
ATI Mobility Radeon HD 5650
4GB DDR3 Memory
500GB HDD
 
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