I would take it back to the shop you bought it from, they should
replace it or refund you some money depending on the time you have had
it for. To me it doesn't sound like it is fit for the purpose it was
sold for, seeing as it's just out of warranty. If they start playing up
threaten 'em with the trading standards. I think the shop has a
responsibility for the product purchased for 5 years after purchase
which kinda makes a mockery of extended warranties. I forget all the
ins and outs but I was told this pretty recently about my home cinema
system when that went nipples north,. I'd check it out with them though
just in case...........

Richard