it wasn't until about 3 months after i purchased my macbook i started experiencing random shut downs, vertical lines, the whole nine yards. when i first got it, i replaced the ram with 2 sticks of 512 mb from memory 10. i just called apple care to finally have them fix it (me resetting the pram isnt helping anymore) and they said i need to put in the original ram because it could be a ram problem. does this make sense considering i had it in there 3 months prior to the problems and it was fine? see the thing is..i cant find the original ram. am i out of luck? i heard apple wont even touch my computer if the original ram isnt in it. i just want them to replace the logic board since that seemed to be a number of people's problem as far as random shut downs go. help! Edit: has anyone else experienced random shut downs because of memory 10 ram?