What anti virus and firewall are you using ?
norton anti virus not sure what a firewall is......
Does it turn straight back on ?
it will turn back on but wont load up if i turn it straight back on after it has just cut out, but it will load up if i leave it a while 15 20 mins....
Does it feel unusually hot ?
it is quite hot underneath not to sure if this unusuall...
Do you see anything in the Windows event logs around this time ?
not sure what the windows event log is.....
Did you buy this new and has this always happened ?
i did get it new but it as only just started to do it....
Is this still under warranty ?
it isnt under warranty.....