Keyboard issues on Acer Aspire One

Ok, so I'm running Windows 7 Professional 32 bit on my Acer Aspire one netbook. The maching is the 8.9" version, the particular model # is AOA 150-1635. I was able to install 7 using microsoft's usb/dvd tool and a flash drive, and one quick run of windows update got me most all of my hardware drivers. It got all of the drivers, but I reinstalled the drivers for the touchpad and the chipset controller driver as well as installing some factory acer software such as launch manager, just for increased functionality. So far, I have every factory function and feature working properly with one exception. No matter what I do, I cannot get the keyboard to be able to control the volume. Usually, the Fn key + the up or down directional key raises or lowers the volume. Every other Fn key works fine, including the screen brightness, which is controlled by the right and left directional keys. I am stumped, I even installed a new sound card driver direct from Realtek.

Does anyone have any ideas?

cliffnotes: installed 7 professional on aspire one netbook, used windows update to install drivers, re-installed drivers for wireless card, sound card, and chipset controllers with download from manufacturers, flashed bios to newest version from Acer, installed Acer launch manager. No matter what, can't get volume to be controlled by Fn+ up or down. All other Fn keys work perfectly.