Hello: I have an [B]Acer TravelMate model 4740 [/B]that needs a replacement screen. Where do I find a reference guide for the all the models/numbers that will work/fit with this laptop? Where would I find a good parts supplier for this particular product? Thank You: [B][I][FONT=Times New Roman][SIZE=5]Rick[/SIZE][/FONT][/I][/B]