Keyboard volume control

try reinstalling the atk hotkey drivers.

http://support.asus.com/Download.aspx?SLanguage=en&m=Q301LA&p=3&s=583

chose the operating system. under utilities you will find atk hotkey drivers. download and install them.

Hotkeys
The computer employs hotkeys or key combinations to access most of the
computer's controls like screen brightness, volume output and the BIOS utility.
To activate hotkeys, press and hold the <Fn> key before pressing the other key
in the hotkey combination.

<Fn> + <F8> Speaker toggle Turns the speakers on and off.

<Fn> + < > Volume up Increases the sound volume
(only for certain models).

<Fn> + < > Volume down Decreases the sound volume
(only for certain models).

YOu will need to doanload and install the Hotkey Driver and Hotkey Settings Application for your model from http://pc-dl.panasonic.co.jp/cgi-bin/itn/toughbook/dl01.cgi

- Content Type: Driver Keyboard, Mouse and Peripherals
- Model (select exact model found on sticker near serial number)
- Select Operating System
- Select Language

Then click Search. Click each link to doanload and run the install. Follow on screen prompts and reboot if requested.

you need the dell's keyboard shortcut utility, dells hotkey and dells latest bios.

GO ONLINE AND TYPE IN THE ADDRESS BAR:

GATEWAY 7210GX HOTKEYS DRIVERS

WWW.WINDRIVERS.COM/HOTKEYS
WWW.WINDRIVERS.COM/DRIVERS/HOTKEYS
WWW.DRIVERSHQ.COM/HOTKEYS
WWW.DRIVERSHQ.COM/DRIVERS/HOTKEYS
WWW.UPDATEDSOFTWARE.COM/HOTKEYS
WWW.WINDOWS.COM/DRIVERS/HOTKEYS

These instructions are for Windows XP:

• The volume button, brightness key, and disc eject button on some computers will not work if the HotKey Utility application is not running.
• The Magnify button and the Fn keys will not function properly before the operating system has finished starting.
• The setting may not be saved if the ESC key is used to close the Fn display. Press the ENTER key or allow the Fn display to close automatically to save the setting.

1. Click the Start button, then click Run .
2. In the Run window, next to Open , type MSCONFIG .
3. Press the ENTER key.
4. In the System Configuration Utility window, click the Startup tab.
5. On the Startup tab, under Startup Item , ensure that there is a check in the HKserv checkbox. NOTE: If HKserv is missing, reinstall the HotKey Utility application and the Sony Utilities Library.
   
6. Click the OK button.
7. In the System Configuration box, click the restart button.

The keyboard  is not sending a note off instruction after the key is released. Try checking midi preferences in reason.If your using a Mac check that the edirol is present by launching Audio MIDI Setup utility located in the utilities folder. You can download the latest Mac driver from Roland below: EDIROL PCR-300 32-key MIDI Keyboard Controller :: Download 

Follow this procedure to enable the special buttons or function keys on the computer or keyboard in the Microsoft® Windows® XP operating system.
IMPORTANT:

• If software has been installed for use with a third-party keyboard or mouse, uninstall the software to ensure there are no conflicts.
• On AMD™ or Transmeta™ processor-based computers, the function keys are hardware controlled and not controlled by a hot-key utility.

NOTES:

• The volume button, brightness key, and disc eject button on some computers will not work if the HotKey Utility application is not running.
• The Magnify button and the Fn keys will not function properly before the operating system has finished starting.
• The setting may not be saved if the ESC key is used to close the Fn display. Press the ENTER key or allow the Fn display to close automatically to save the setting.

1. Click the Start button, then click Run .
2. In the Run window, next to Open , type MSCONFIG .
3. Press the ENTER key.
4. In the System Configuration Utility window, click the Startup tab.
5. On the Startup tab, under Startup Item , ensure that there is a check in the HKserv checkbox. NOTE: If HKserv is missing, reinstall the HotKey Utility application and the Sony Utilities Library.
   
6. Click the OK button.
7. In the System Configuration box, click the restart button.

just install the hotkeys driver from the acer website and they should work again! ^.^

None of the solutions in the forums work, at least they didn't work for me. I finally got the solution from Lenovo support. You need the hotkey driver from their website. Download it here:

http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-38953

Follow the instructions on the above site to run hotkey\setup.exe and reboot, and you will have your on-screen displays back!