Vista - blue screens

I was recommended to download vista service pack and I did..And the thing is I still get blue screens for some reason..Heres my recent one, see below. For some reason whenever I have Internet Explorer and Windows Media Player running blue screen always happens.. I'm not a computer expert at all and do not know if they have anything to do with it but I would appreciate any help from these forums.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.0.6001.2.1.0.768.3
Locale ID: 1033
Additional information about the problem:
BCCode: 100000b8
BCP1: 803D51E0
BCP2: 883D5A18
BCP3: 803ED000
BCP4: 00000000
OS Version: 6_0_6001
Service Pack: 1_0
Product: 768_1
Files that help describe the problem:
C:\Windows\Minidump\Mini061808-02.dmp
C:\Users\Brian\AppData\Local\Temp\WER-59529-0.sysdata.xml
C:\Users\Brian\AppData\Local\Temp\WER447E.tmp.version.txt
Read our privacy statement:
Microsoft Online Crash Analysis

The dump file should be analysed, it gives normally the cause of the BSOD.
What says the C:\Users\Brian\AppData\Local\Temp\WER447E.tmp.version.txt file?

Hey B1_Returns,

Here are the details I found about that BSOD code,

Bug Check 0xB8:
The ATTEMPTED_SWITCH_FROM_DPC bug check has a value of 0x000000B8. This indicates that an illegal operation was attempted by a delayed procedure call (DPC) routine.

Parameters
The following parameters are displayed on the blue screen.
Parameter Description

• 1 The original thread causing the failure
• 2 The new thread
• 3 The stack address of the original thread
• 4 Reserve

Cause
A wait operation, attach process, or yield was attempted from a DPC routine. This is an illegal Software operation.

Resolution
Uninstall Antivirus, antispyware, defrag software and other system monitoring tools and also run chkdsk /f /r /x

Steven