Hello all. So I've posted about this issue I am having on here before. The twist this time, is that I am wondering if it could be my hard drive. This issue: if my Macbook (black, core duo 2ghz) is not hooked up to the power adapter it will randomly shut down. For the most part this will occur if I move the computer at all (although I am not positive this is always the case). A while back I brought it to the Genius Bar and I was told it was a software issue with the computer going to sleep... they said I just needed to do a reinstall of the OS and it would be fine. They seemed very sure, so I just ignored it for a little while since I don't often use it unplugged... anyway when I finally did the clean install it still had the issue.
So basically, I have no idea what the problem is. I am a graphic designer and this is my only machine... so I need it to work. I am planning on upgrading the hard drive soon. My question is, do you think this could fix the issue? and should I be worried about a logic board issue?
Thanks!