Thats not what I was going to suggest
I did a complete system restore, which I interrupted half way through causing blue screen of death..... then sent it back to the factory as it was under a year old....
They replaced the hard drive and ram FOC. Then given me a fresh install of Vista (oh joy) and off I went problem free!!
The laptop is 3mths old, it was replaced on house insurance because other one was damaged, so not sure what warranty it has got?
Dont really wanna knacker it up i just wanna know why it keeps getting this host process thing?