I have Windows Vista on my MacBook and I have noticed that Vista says the MB is plugged into the mains even when it is NOT. Obviously it does not show it as charging (because it isn't really plugged in) BUT The logo shows it as plugged in and it says its "plugged in, not charging" when it is not. This has no effected performance that I can see but it seems strange! Anyone else have this problem? know a solution?