A couple of days ago I started experiencing some weird things with the Macbook. First I would turn it on, the little power light would turn on as well then dim and the computer would shut down. Well I thought it was perhaps because it wasn't charged so I plugged it in and let it charge for a few minutes. I turned it on after and it seemed to load (even though it was slower than usual). Today I turn it on and I head to the bathroom to brush my teeth. When I come back the screen is black as if it was in screensaver mode or something. I pressed enter and once I did that's when the desktop and dock started popping up really slow.... Then the computer shuts off. And it is charged, it was at 40% when this happened. I've had these two cases happen quite a few times these past couple of days.. sometimes it shuts down and restarts itself only to shut down again. I do carry my Macbook with me in a backpack quite frequently (one that's supposed to protect it and hold it in place) so I don't know if that has anything to do with it. I also have a lot of items on the desktop and perhaps I need to clean the Mac up a little bit.... or perhaps I caught, god forbid, a Mac virus/trojan? I have absolutely no idea so that's why I'm asking for your help and suggestions. After this happens and I am finally able to get it to load properly it starts out sluggish.. like the movements of the computer are sluggish and then after a while they go back to normal. Just gave you all of those tidbits in case they would help you out.