I would have to agree with everyone about the toshiba screen protector... Last night I took it off too! It was a bit difficult, but I figured since it was a used laptop, I wouldn't cry as much if something went wrong. So I picked away at a corner and also felt like I've been led astray, but sure enough somthing got picked up and I carefully and slowly pulled of the toshiba protection. It's pretty stiff and hazy and it does make a huge difference with screen brightness. It's slick like glass and glares like it too :) But I also put on a SE screen protector and have no ill effects. It is really worth thinking about (best part is, it removed scratches and dings and an imperfections the screen had before, so if you think you scratched it, you actually didn't, it's just the protection layer that's scratched)
Thanks again to the wonderful and daring people on this forum!