Without looking for your error in specific you may have failing ram.
Its fairly common on many of the dell notebooks
hit the power button
start tapping f12 light and fast
a menu will appear
Choose diagnostics..i dont remember the exact wording off the top of my head
Run the diagnostics...it will check for failing ram
Also with vista in the event of errors always check the ram as it can simulate many problems...
Example the ram was failing on my dell1525
My virus protection would shut down
I would get a firewall warning
i would get pop ups that services was shutting down.
I reformatted...3 days later the same thing
so i reformatted again..3 days later the same thing.
then i started to get blue screens after the errors.
I ran diagnostics....and ram was bad