WIN XP PRO RESETTING ON ITS OWN?! PLEASE HELP

> Hello
>
> Over the last few weeks my pc has started to reset its
> self without warning. It completely resets as if the
> reset button has been pressed.
>
> It only seems to do it when I am actively using the pc. I
> tried to find the cause of the problem through trial and
> error but I've hit a brick wall.
>
> I thought that it may of been a software conflict and at
> the time of the resets I was using MS FrontPage. I
> stopped using that for a while but the problem persisted.
> I've reformatted my h/d and reinstalled win xp and only
> installed programs that have worked without problem in
> the past, yet the resets continue to happen so I know my
> programs are not the cause.
>
> I've checked all the obvious, virus check, overheating
> etc and everything is ok there, which leaves me to
> believe its a problem with windows itself.
>
> Once I had rebooted I check the 'Event viewer/system log'
> which advises me the following....
>
> 'The computer has rebooted from a bugcheck. The bugcheck
> was: 0x000000d1 (0x627fe3e4, 0x00000002, 0x00000000,
> 0xf77e9e2a). A dump was saved in:
> C:\WINDOWS\Minidump\Mini072004-01.dmp.'
>
> Does this jargon mean anything to anyone? Or does anyone
> have any suggestions how I can put a stop to this problem?
>
> Thanks in advance.
>
> Dupy