Help BSOD tried all I know

Hello,
I keep getting random blue screens... Happens more frequently when I have a video video playing and a game playing on both monitors... Still happens when just running just one application on one monitor just less frequent. I have ran many test on my computer to try and fix the problem For instance ran Memtest86, tried replacing the RAM, bought System Mechanic Tools Pro and ran the sfc /scannow in CMD Windows Resource Protection did not find any integrity violations.. I do not know what else to try.

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: be
BCP1: 0000000076FFF919
BCP2: 15000000ACA8E025
BCP3: FFFFF88002E41950
BCP4: 000000000000000A
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Ultimate, Service Pack 1, 64 bit
Processor: AMD Phenom(tm) II X6 1100T Processor, AMD64 Family 16 Model 10 Stepping 0
Processor Count: 6
RAM: 6143 Mb
Graphics Card: NVIDIA GeForce GTX 460, -2048 Mb
Hard Drives: C: Total - 953859 MB, Free - 332559 MB;
Motherboard: ASRock, M3A770DE
Antivirus: Kaspersky PURE 3.0, Updated and Enabled

Thanks so much for your time.