hi for a few weeks my laptop hasnt been charging properly i have to wiggle the wire around untill the charging light lights up on my laptop then try and keep the charger wire where it is. Well last week it wouldn charge up at all therefore my battery died and havent been able to use it. luckly my mum has lent me her laptop for a bit. I thought it must just be the charger a loose wire or something so i ordered a new charger of a company on ebay and it said it was compatible with an advent 7103. It arrived this morning but when i plugged it in the connection didnt go all the way in as its too big/long and i switched the laptop on and like it has been doing it just turnt itself off again as the battery is dead but for the few seconds it was on the charging light wasnt on so now im confused as to is it that i have the wrong charger or is it actually a problem with my laptop??