FN keys not working on Satellite A100

Question

I posted a question back in febuary with little success in a solution.
The fn keys on my laptop are not working, the only time the work is while the computer is booting up.
Once my display screen comes up they mysteriously stop working. I have been told to download all kinds of things from this website which i have but everytime i go to install them they won't let me.
If some one actually has a thought out response to this question please post.
I need to know what i need to download and how to install it.
Pretty simple, please respond with those answers.
thank you

Answer 1

In Windows Vista there is a difference between accounts with "computer administrator" privileges and the Administrator account.
In the Administrator account the User Account Control is disabled. Also by default, the Administrator account is present, but hidden and disabled.
You can enable it using 2 difference methods:
_Method 1_
Start by booting your computer to Vista in your computer administrator account Next open administrative tools in the control panel. Double click the computer management item, this will open it. You then authorize user accounts control by clicking the continue button. Double click on "local users and groups", this will open it.
- Click the user's folder.
- Select the administrator icon.
- Right click it to open its content menu.
- Choose properties.
- Remove the check mark from the "account is disabled" box.
- Click OK.
- Restart your computer.
Once your computer has restarted, open the administrative tools control panel.
In the Users area, disable any other enabled accounts with computer administrator privileges.
Look for account icons that do not have the red disable mark.
Click to place a check mark on these account icons.
Next you open Properties.
Click to add a check mark in the box labeled "Account Is Disabled."
Check to see that your Administrator account is enabled.
You can now close Computer Management and restart Windows.
When vista reboots the administrator account will be loaded automatically.
Be advised that this method is for temporary use only, for security reasons. You should never leave your Administrator account enabled without a password.
_Method 2_
Turn on your computer. As Windows is starting up, when you see the "Starting Windows" come on your screen, quickly press F8. In a dual-boot environment, this can be done easily from the boot menu.
When the boot menu is showing:
Using the arrow or tab keys, you will select "Microsoft Windows" (this is the option that runs Windows Vista). Do not press Enter, instead you press the F8 key, and you will progress to the Safe Mode boot screen.
At the Safe Mode boot screen, you will select the first option, "Safe Mode".
Press Enter. It will take a few moments but Vista will present to you a login screen that has two options, Administrator and Other User.
Click on the Administrator icon. Your Windows Vista Administrator account has now been enabled.
Then you could try to log as admin and could remove the VAP ;)