Urgh, I am stressed about my computer. It won't turn on. I'll give all the details I think may be relevant. For a while, my MBP hasn't had great battery proformance. When unplugged, the battery life is really short and when it would occasionally die because of no battery, it would take a while for it to get enough battery power to power on again (not right away). But, because I was poor (like I am still) I just let it slide. Recently, the magsafe power cord I was using frayed at the tip and stopped working. So, I sort of stole/borrowed my roommates. Her's had weird issues with the light, where it would charge the battery but there would be no light or a very dim light on the magsafe cord tip. I chalked it up to the cords fault, but i don't know if it was or not to be honest. Today, the computer died due to low battery so I plugged it in to the power cord. It charged for a long time and the battery indicator light showed almost full power, yet the computer wouldn't power on. Nothing, no wurring, no noise, just a cold laptop. So I left it on the charger for another hour. I come back and its the same, except this time, the battery indicator lights show nothing. I press the battery indicator light and all the lights come on, but then just go off. I'm thinking its just the cord, so i borrow another persons cord. Nothing. I try to reboot stuff, nothings working. On a side not, when i plugged in the other power cord, the magsafe tip turns full green, no issues. I'm thinking its the battery, except that if I take the battery out and just use the ac cord, the computer still won't turn on, with either cord I use. This worries me a lot. I just had something replaced about 3 months ago, but I can't remember what it was, a logic board or some sort of card? I was turning the computer on but wasn't getting any picture... doesn't seem to be the same problem but maybe they're related? Anyway, my laptop is my life, so I really need to figure this out. Any advice is welcome!