I can't afford a new laptop, so I need a hand knowing what to have repaired on my acer. About a year ago it crashed, I re-installed windows, and now it is fine... ish. It doesn't play any sound, however it detects the sound as being there, as the little sound thing moves, it isn't the speakers as playing through ear phones doesn't work either. Video is lagged, It either plays in slow motion, or is very freezey or jumpy - and that isn't just youtube or anything like that, it is all videos and filming. so please may somebody tell me what is wrong, and what i need to replace/do with it please.