hello. ive noticed my computer slows wayyy down when i try to play a game or watch a movie or video. i looked in system/ hardware and it has a question mark on video controller (vga compatible). which means i need a driver for it right? i dont know what kind of computer i have because my moms friend put it together for us, so its not a dell or hp or anything. does anyone know where i can get this driver? ive read alot and it seems people tell other people asking this question to go to the computers manufacturers website. but i cant do that. i also havea question mark on pci simple communications controller. i dont know what that is. im not very computer savvy but i know the basics. any help is appreciated. thanks.