Ok this is kind of a long story but I want to make sure I put all the information out there so I can get the best possible help. So... The other night, I was trying to upgrade my blackbook's HDD. I put the new drive in but my mac wasn't reading it, I think because I needed to format it first. It was working fine when I put it in an enclosure and used it with USB, so I decided it would be easier to just clone it using Sperduper! then swap them out instead of doing a fresh install. While it was cloning, I had the battery out and was running it plugged in since it would just be more hassle later when swapping the drives. Well, I decided to take the computer into another room and, forgetting the battery was out, unplugged it. Now, it won't boot at all. I get a black screen and the sleep indicator remains steadily on, but I do hear fan noises etc. I have an appointment at the Apple store for Saturday, and I'm just wondering what I should tell them. From what I've read in these forums my symptoms seem to indicate that my logic board may be fried, and I'm wondering if this could be related to my HDD swapping (even though it was working fine before I unplugged it). Should I let them know what I was doing when the problem occurred or just tell them it happened randomly? My Macbook is covered under Applecare, and I don't want to jeopardize them fixing it even though swapping hard drives shouldn't void the warranty. Thanks for any advice.