BSOD every time I try to shut down

Sony Vaio FZ21M laptop. Had Vista installed at first, then I couldn't take it anymore, installed XP. It was hell to get drivers for that. Then 7 came out and installed that, had to get some more driver wizardry on. Sony are pretty up tight about their own proprietary drivers or whatever. Specially with the graphic card.

I started getting BSODs randomly, sometimes closing the Chrome browser (and only happened with Chrome), sometimes during shut down. But now it's always happening.
Here's the log:

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 2070

Additional information about the problem:
BCCode: 3b
BCP1: 00000000C0000046
BCP2: FFFFF80002D077F8
BCP3: FFFFF88009C51820
BCP4: 0000000000000000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\012210-26504-01.dmp
C:\Users\Mariano\AppData\Local\Temp\WER-93116-0.sysdata.xml

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If the minidump is needed, I'll post it here.
I've hit the "Check for solution" button, nothing happens.
Please help

Thanks
Here's what I could gather.
I included the last 4 dumps I got while trying to solve the thing. Not that I did much, but it kind of proves that the thing happens ALL the time.
Let me know if I missed something

Without looking at the mini-dump, Its a service causing the problem.

If someone else hasn't identified what service from the mini-dump by tonight, when I get home Ill check and let you know the exact one.

You could also run this in a Cmd prompt (exactly how its written): sc query state= all > %userprofile%/services.txt

It saves a list of all your service names and their exit codes, If you can upload here I can take a look otherwise you'll have to wait till Im home or someone else looks at the mini-dump

Steven

Additional information about the problem:
BCCode: 3b
BCP1: 00000000C0000046
BCP2: FFFFF80002D077F8
BCP3: FFFFF88009C51820
BCP4: 0000000000000000

Bug Check 0x3B: SYSTEM_SERVICE_EXCEPTION

Yeah I had checked the BCCode 3b for system service exception but reached a dead end in my computer skills so..
Huh... huhhh... the result of that command was:

[SC] EnumQueryServicesStatus:OpenService FAILED 1060:

The specified service does not exist as an installed service.

that cant be good

Beginning system scan. This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.

Windows Resource Protection did not find any integrity violations.

Also ran the previous command again, this time figuring out how to run cmd under administrator, but it still says

[SC] EnumQueryServicesStatus:OpenService FAILED 1060:

The specified service does not exist as an installed service.

Did I disable some service?

Bumping I still have the problem, some more help please?

Well yeah I could format too, but the whole point is trying to fix things right? I dont feel like things going to default.. that's the idea. Specially cos I had to fish for drivers all over the net, since Sony refuses to give any support on them.