I splashed some wine on my 8 month old MBAIR. The Apple Store said there was liquid damage and it needed a motherboard. It turns on, the battery charges, it is picking up my emails but when I click on anything, the beachball spins, then goes away and I cannot open anything. Could it be something other than the motherboard? Should I get a second opinion? is it worth fixing, depending on what it is, or should I sell it for parts?