Samsung notebook model NT90553G keyboard suddenly stopped working.Was working fine and then i used wet cotton swab to wipe it. Mistake was doing this while computer on startup page where you enter password. After that computer went psycho, entering weird words into the password box then erasing, then just flashing repeatedly. Touchpad didn't work then either but then when restarted it worked, but keyboard didn't, not even Fn keys. So left it for the night and rebooted it, tried uninstalling keyboard in device manager and restarting, still doesn't work. (Computer makes loud whirring sound and gets hot faster now.) Help?