Another Update... wireless adaptor
After being unable to connect to the internet since Fri morning using my MacBook Air, all of the sudden it decides today (Monday evening) that it will connect... I re-set my router on Friday, called my internet service provider, re-installed & re-configured the router etc over the weekend but no success ...(except for my Windows PC's) ... having made no changes at all today to router or Mac, but thought to give one more try before taking it back to the Apple shop, it connects to my wireless router without a problem ... This is the most bizarre piece of equipment I have ever owned (and will disown very soon).