My Laptop keys are not working after connecting with wireless keyboard (Please Help)


I'm using ubuntu for more than a year in my laptop right now using Ubuntu 10.04.

My laptop keyboard keys are not working
Recently i brought wireless keyboard, so i started using my wireless keyboard. Few days later only i find out in my Laptop Keyboard keys are not working properly.
Please anyone tell me how to change to the previous setting, i have tried System >> Preference >> Keyboard in that keyboard model

Normally
abcdefghijklmnopqrstuvwxyz

I'm Getting in my laptop
abcdefgh51230n6*qrst4vwxyz

Wireless Keyboard Details
Brand Name : HP
Product No.: GM322AA
Model No. : 5309URF

Laptop Details
Brand Name : Compaq Presario
Model No. : C700

Help me out, i can't able to take my laptop outside without my wireless keyboard, and i have searched a lot to find some result, but i can't able to find anything.