Somone spilt a glass of wine over macbook, it started spooning out and crashing (after drying it externally) so I disconected the magsafe and happy days, it worked again. When battery drained, i put it into drying room and tried again with mag safe, but again, spooned out and crashed. So, i took it apart, inspected the logic board and saw some fizzy greenish copper activity next to a chip adjacent to the power input plug on reverse side, so scraped away at it and tried again, no joy. So in despair pulled it apart again and under a microscope saw very small amounts of residue between connections on the magsafe 'internal circuitry' which links to logicboard via a pin connector, so very carefully scraped them away with a tiny flat head screwdriver and tissue. Now we are firing on all 8 cylinders!! happy days, aren't macs great. peace out!! I thought this might help someone else hence the reason for posting! Ps switched to windows for a day on old machine and nearly reached for the happy pills after seeing all these, ''windows needs your permission'' wank, thank Christ we're back..