have a HP Media Center thats 2 years old, it keeps hanging every 6-8 hours. I have taken it into 2 local computers stores, one charged me £30 but didn't manage to repair it. They swapped all parts except the Motherboard. The second shop said they found a faulty BIOS reading and it may be the motherboard. However it's exclusive to HP. I have looked on HP wedsite and their local authorised repair center is in Leed.They said it's £165 call out and £55 for each half an hour, plus parts. This would mean if it is the motherboard (£120) it would cost me £360. This seems a lot and although the unit is high spec and cost £800 2 years ago, I could buy this spec for £450 now. Any advise on how I could get it done cheaper?