Hello I'm new to the forums here and was wondering if anyone could help me out with an issue I'm having. I purchased a 2010 MBP from a friend about a year ago. It had a bad hard drive cable so I replaced that no problem. Now this summer I've been having issues with the display. At first it would just boot up and then dim down to a black screen. Then it started never showing the backlight at all. I took it to the apple store to see if they could possibly count it as the old gpu issues with this model (I wasn't even getting a display at all) but they wouldn't honor it. They claimed it was a bad display. So I started messing around and eventually got it to show a display but no backlight. I tested the backlight fuse with my multimeter and it showed it was dead so I ordered new fuses. Now today I got the fuse and because I'm not the best at soldiering I used some conductive paint (this stuff: http://www.bareconductive.com/shop/electric-paint-10ml/) and just stuck it on top of the old fuse. When I booted up the machine I had backlight for about 2 seconds until it flickered out and I got smoke coming out of fan grill. The fuse burnt up. Any idea what could be causing the fuse to blow like this? Thanks in advance.