Norton is likely causing your problem.
Replace Norton with the free AVG
http://free.grisoft.com/ or Avast
http://www.avast.com/eng/avast_4_home.html, and Windows Firewall and Windows
Defender. Disabling Norton is not enough. You need to completely uninstall
it. If it doesn't solve the problem, get rid of Norton anyway. Norton is
known to cause many problems which don’t always appear immediately.
Download and run the Norton Removal Tool.
http://service1.symantec.com/SUPPORT...05033108162039
It's called "360" because Symantec's goal is complete ownership of your
computer, and with even less communication about what it's trying to do or
ways to configure it than ever before (which would only interfere with its
goal.) That, along with Symantec's famous technical support, makes Norton
360 a disaster that I would only install on Granny's computer if she was
going to disinherit me.
-------
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http://support.microsoft.com/kb/555375
"Ed B." <> wrote in message
news:924664D2-CE0D-4AAC-8004-...
>I apologize for the long post - I have been struggling with this problem
>for
> 9-months now. I continue to have a random 'freeze' problem with my Dell
> 9200
> computer that I noticed soon after I bought the computer in late June
> 2007.
> It runs Vista Business and I loaded Norton 360 on the first day. I have a
> lot
> of other software (e.g. Office 2007) but the problem does not appear to be
> application based. The freezes occur intermittently and last 60-90 seconds
> during which time I am unable to use the system. During the freeze, the
> cursor will usually move and sometimes show an hour-glass but not always,
> the
> keyboard buffer appears to accept a few characters, and a print job
> underway
> will continue, but otherwise there is no indication that an app or
> something
> else is not responding. Also during the freeze, the clock will not update
> but
> the network (broadband) activity animation will show activity, and the
> disk
> activity light is solid (green) but without the typical sounds of disk
> drive
> activity - like it is doing a high priority continuous read or write.
> After
> the freeze, everything resumes normally without any messages.
>
> I have not been able to cause the freezes but they seem to happen more
> frequently within an hour or two of rebooting and sometimes will happen
> several times within a 5-10 minute time period. I have observed the freeze
> with just Windows Task Manager on display but cannot tell what process(s)
> may
> be involved. I have also tried relocating the DVD cable to different SATA
> connectors but that did not resolve the problem.
>
> Dell Tech Support was unable to diagnose the problem (including the 5-hour
> hardware tests) and recommended that I reset the system to 'factory'
> defaults
> and rebuild the system. I have refused to do this (so far) because I know
> it
> will take a minimum of 16-hours of my time. If I have to do that to
> resolve
> the problem, I'll probably go back to XP-Pro... any ideas about what's
> going
> on and a resolution?
>