Hi I purchased a HP desktop pc from Comet in Feb 2011 and had no problems until Jan 2012, when I started getting blue screens/crashing/not switching on. Sent back to HP for repair and they did a BIOS upgrade and system restore. Worked ok until last week when I started getting errors, blue screens again. I have spoken to HP who stated as the pc was outside its 12month warranty they would charge me for any advice/repair. I have also spoken to Comet who said the same thing. After getting advise from CAB I was told that Comet are my port of call as they are ultimately responsible. But for how long? I have had a engineers report done today which came back with a memory stick fault and could cost £80 for him to repair. Am I liable for any repairs now? How does the sale of goods act protect me in this instance when goods have to be 'satisfactory and fit for purpose' As other things could go wrong with pc before the 6 years is up? Thanks. It would be good to fully understand the rules.