i have a acer motherboard: (MBv060900145200F14EK06) that has a realtek audio chipALC2021 - 49352Q1 - 440F)but each realtek,Intel broadcom Intel and vista audio driver i try doesn't seem to work for my computer i just recently install win 7 in it, but before i install win 7 my internet worked but now that i install it the pc state the multimedia controller is missing but all the pc doesn't do is recognized the Ethernet core when i plug it into the pc to the router can someone please help.oh one more thing when i look at the device manger my network adapter is not even on the list of devices so now I'm really confuse. plz help