So, I've got two problems with my white summer 2007 macbook: 1. The power adapter appears to be failing. This has been going on for a few months, but has gotten much much worse over the last week or two. Sometimes the green light on the plug(that connects to the macbook) will just fade until it's out, and the macbook won't receive any power. Sometimes the green light will stay on for a bit, but the battery icon in the finder bar doesn't change to the ac icon. Sometimes, the macbook will receive power but the battery won't charge. I find that if push up a little on the plug(from the bottom), that the power stays on longer. I've had this macbook for nearly four years now, and this issue only started in recent months, and has gotten to the point in the last week where it(the power adapter) will barely function(I'm on battery power right now). So, the obvious solution is to buy a new adapter - my question is, is there any chance the internal power supply of the macbook could be failing, or can I be sure it's the power adapter? 2. Like I said, I've had this macbook for nearly four years, and in that time, I've rarely had problems connecting to my wireless access point. Some issues here and there, but never anything chronic like what has been occurring in the past couple weeks. The connection will just cease in the middle of a browsing session, all four bars on the airport indicator on the finder go blank. I can then try to connect to my wireless network 10 times in a row before it connects again. Sometimes turning airport off and then back on helps, sometimes unplugging and replugging my access point helps, but sometimes neither helps and I just have to keep trying and trying until I connect again. This has only started recently, the past few weeks. Is it possible my airport adapter is failing? If so, can I get an external wireless adapter to replace it? If my airport adapter isn't failing, does anyone have any advice about how to fix this problem? I've heard people say to change the channel the airport listens on, but I can't figure out how to do that(plus, I don't know why I'd need to after four years of no major issues). Also, is it possible that the wireless issues could be related to the power issues from #1? Thanks for any and all advice.