Well just a bit of an update, I dont want to rip its guts out while its still starting, so watch this space.
It does start 9 out of 10 first time but just takes 20 minutes before the screen kicks in but pc makes the correct start up noises through the speakers, windows tune and the like, handy enough a new GC update was available this evening, we will see what happens at next start up.
Thanks for all your replies and I will update as we go
