I found the solution to this problem at:
http://answers.yahoo.com/question/index?qid=20121227004715AAu7ZM7
The solution provided by 'shakira':
go to start menu
search up "brightness"
click on adjust screen brightness
On the side you will see "Panel Open-Power On" click on that
go to keyboard tab
check the option that says "Standard F1~F12 mode"
then it'll say that you have to restart computer click yes to restart now or restart later
When ur computer is done restarting u wont have that problem
This works.