Keyboard doesn't work right click on mouse doesn't work

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http://www.linuxquestions.org – I have just installed Mint9.Dual booting with Windows 7. My keyboard doesn't work and the right click on the mouse doesn't work. I am able to type in my password on startup, but no time after that. If it ask me for authentication, I am unable to type in my password. One time only I recieved this message: "Could not grab your keyboard. A malicious client may be eavesdropping on your session or you may just clicked a menu or some application decided to get focused. Try again" I'm new to Linux and I do not have a (HowTos)