Well long story short, I spilled sprite on the keyboard of my husband's Macbook. Took it to Apple they said they could take it in for a flat rate of $755 to fix it or I could take it to another Apple Authorized place to just have the keyboard fixed since everything still worked when they plugged in a external keyboard. So I took it to the place, told them what Apple said, had them just fix the keyboard and they just called and said that did not fix the problem so it must be the logic board. I don't know ANYTHING about computers so I decided to come here for an honest answer because I am wondering if it worked fine with an external keyboard, could it really be the logic board? I don't know how these things work at all so please excuse me if I sound dumb...