Random BSOD's on Vista?

[Ang97]

I am frequently getting bluescreen's on both my Windows Vista desktop & XP laptop-

the most recent one on Vista said :


Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.0.6001.2.1.0.768.3
Locale ID: 4105

Additional information about the problem:
BCCode: e3
BCP1: E0863508
BCP2: 86D6A8C0
BCP3: 00000000
BCP4: 00000002
OS Version: 6_0_6001
Service Pack: 1_0
Product: 768_1

Files that help describe the problem:
C:\Windows\Minidump\Mini112110-01.dmp
C:\Users\Angela\AppData\Local\Temp\WER-137093-0.sysdata.xml
C:\Users\Angela\AppData\Local\Temp\WER255A.tmp.version.txt


Any idea what's causing this..?

The system's a HP Pavilion, model a6518f, AMD Athlon 64 x2 Dual Core Processor 5400+ 2.40 GHz, 3 GB RAM, and 32 bit Operating System.

 

[Route44]

Bug Check 0xE3: RESOURCE_NOT_OWNED
This indicates that a thread tried to release a resource it did not own.

The following actions might prevent an error like this from happening again:

Download and install updates rom Windows Update.

Scan your computer for computer viruses.

Check your hard disk for errors.