Where's F9 to F12?

Anything with an F on it has to be used in conjunction with the depression of the Fn key in unison. Anything else will be controlled by either the shift in unison or with the control key in unison with the desired key.

Compaq Presario computers provide users with a row of function keys for added keyboard functionality. Function keys can serve a dual purpose as well.
Function keys are located at the top of Compaq Presario keyboards.
By learning how function keys work on a Compaq Presario you can take advantage of time saving keyboard shortcuts.Purpose
Use function keys to access menus, save changes and create shortcut keys.
Various applications, including Microsoft Office, allow you to select a function key as a shortcut key for running specific tasks. These settings are usually found under the Tools, Settings or File menu.
Each Compaq Presario computer has twelve function keys.
The most common used keys are "F2," "F8," "F10" and "F12."
The first three are used mainly to access and use the Compaq BIOS. "F12" is used to access a set of run from options during the boot process.

How to Access
Access function keys on a Compaq Presario by pressing any of the keys on the top row of the keyboard. Access the key's dual purpose by first pressing the "Fn" key located on the bottom row of keys.
Use function keys as shortcut keys by pressing them anytime while in the desired application. Remember, you must set them as shortcut keys first.
Note that some programs may already have certain function keys set as shortcuts.
Open menus and view the shortcut keys beside each menu item before setting your own shortcuts.


Dual Uses Each function key has a dual use. Press "Fn" plus the desired function key for the key's other use.
Below each function number is a small picture within a square or rectangle.
This dictates the dual use. "F1" opens help and support. "F2" serves as a printer shortcut.
Open your homepage by pressing "F3."
If you use dual monitors, switch between monitors by using "F4." "F5" puts your computer in stand-by mode.
Quickly lock your computer by pressing "F6." "F7" and "F8" adjust the screen's contrast.
Play and pause your music in Windows Media Player or other default media player by using "F9."
Press "F10" to stop playing media. Skip ahead or rewind media by using "F11" and "F12."

Other "Fn" Keys

In addition to function keys, the "Fn" key is also provides other keys with a dual use.
Any key with a small square on the key has a dual purpose such as the "scroll," "insert" and "delete" buttons.
Since laptop keyboards have no number pads, certain keys serve as the number pad by pressing the "Fn" key.

Fn + F1 Change Display Device. Fn + F2 Wireless Control Fn + F3 Battery information Fn + F4 Decreases brightness on the integrated display only (not on an external monitor). Fn + F5 Increases brightness on the integrated display only (not on an external monitor). Fn + F6 Keyboard backlit(available only if a backlit keyboard is installed) Fn + F7 Mute Fn + F8 Decrease audio Volume. Fn + F9 Increase audio Volume. Fn + F10 CD Previous - Play previous media file. Fn + F11 CD Play/Pause - If there is Audio CD in system, Media player will play music. Fn + F12 CD Next - Play next media file.

u have to replace all the key same model of the keyboard or if u don't have same model of the keyboard then u have to change the keyboard

there is probobly a Fn key somewhere on your keyboard. it should be the same color of the keys you want to press.... use this key like a SHIFT for keys with different color writing on them

The keyboard only works in basic functionality on a linux system media keys may not be support without a third party interface.

At the top of the keyboard are the LCD function keys (F9 - F12). Press and hold the function key (FN, next to the left alt key) and press F10. Use the up and down arrows to change the time. Press FN + F10 again to change between hours, minutes, month etc.

Have you installed the SetPoint software? If you have, you can program certain keys on the keyboard thru the software.

F1 - F12 Function Key Usage
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F1 - F12 Function Key Usage

F1:Help. Click F1 Key can load the help file of the program.

F2:Rename. Select a folder or file, click F2 to rename it.

F3:Search. On desktop, click F3 to load the search form.

F4:In Internet Explorer, click F4 will list the URL Address field.

F5:Refresh. Use it to refresh the web page in Internet Explorer.

F6:In Internet Explorer, click F6 will jump to address bar.

F7:It can be used to insert ^C in command prompt.

F8:When windows startup, it can load the startup menu.

F9:In Windows Media Player, it can increase the volumn.

F10:In Windows Media Player, it can decrease the volumn.

F11:In Internet Explorer, click F11 will switch to Full Screen mode.

F12:In MS-Word, it will show out the "Save-As" dialog.



Take this link u will get all the Function Keys description

http://www.computerhope.com/issues/ch000306.htm

don't think this is caused by the game install shut down the pc and remove the battery and charger for a few minutes. Boot it and try again try connection an external keyboard