hi all! hopefully this is the appropriate place to post this--i'm new here. so, i purchased a re-furbished macbook in the summer of 2008 which has served me well, but for the past few months the screen has become increasingly finicky and now requires being on a bizarre angle with pressure at the back for it to work (otherwise its too dark to see, though i still see the screen if i shine a light on it)...which i've come to believe is a problem with the inverter. AND, now it is not at all detecting my battery. it needs to be plugged in 100% of the time to use. i have no applecare, i'm in Berlin with not much money and i'm trying to figure out the best approach in fixing all of this. should i sell this one, buy a new second hand one, have this fixed.... just looking for advice. i have no idea as to what it would be valued at now, how much fixing it would cost... thanks for any and all help!