Windows 7: BSOD while playing a variety of games, BSOD references DPC

I have a 1 year old Toshiba Satellite A660:
i5-450m
Windows 7 Home premium 64bit OEM original install
4GB of ram
Geforce 330m 1GB



Recently while gaming I've been experiencing BSODs and on the blue screen it'll say something about DPC. I'm not sure what's causing this and in reliability moniter it'll usually have something about Windows failing a bugcheck a minute or so before the BSOD the bugcheck states:
The bugcheck was: 0x000000b8 (0xfffffa800a2b1b60, 0xfffff880033ddfc0, 0x0000000000000000, 0x0000000000000000)

attached is the zip file as per stickied thread

EDIT: Tried reinstalling graphics card drivers, did not solve BSOD

Before I get into anything too fancy, could you do me a favor and just reinstall your graphics driver here?
It's the faulting driver in 90% of these dumps.

Booted into safe mode and reinstalled my video drivers, I'll see what happens.

It just BSODed again, it seems that reinstalling my video drivers did not solve the problem.

I tried updating my WLAN drivers as me being online was a common theme across the BSODs but that didn't help. I'm out of ideas and don't understand the dump files. What does the hivemind think?

There's not a whole lot more to go on. Could you upload the newest minidump files in c:\windows\minidump?
I can have another look and see if anything has changed in the dump files.
The ones I looked at the first time were pretty consistent in blaming the graphics driver though.

How should I upload it? The upload tool says invalid file extension.

oh sorry you will need to zip them first.

Should I just run the tool provided again? Or do you only need the minidumps?

Here are all the minidumps zipped up