My Mac Air Keyboard Lcked but Makes sounds as if invalid key is being pressed?

My Mac today started acting funky. The keyboard is mostly unresponsive. But i managed to get into one of the none administrative accounts. When in the account though, when i attempt to search things. The keyboard makes sounds as if pressing an invalid key. My trackpad is acting weird as well by bringing up copy paste options and then not wanting to press the x button to close windows. What can I do?

Restart.
http://support.apple.com/kb/PH10680
Reset PRAM. http://support.apple.com/kb/PH4405
Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
Try the suggestions made in this article.
http://support.apple.com/kb/PH10680

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while it is open. Items that wear out, such as they are. A battery, for example.
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Happy Thanksgiving Day! Since both of your wireless input devices are not working at the moment, do you have a wired mouse you can use to straighten this out? Here are some troubleshooting steps to try:
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Bluetooth OFF
Bluetooth ON and connected to wireless device
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Bluetooth turned on and at least one wireless device is connected. See the "Make sure the wireless mouse or keyboard is turned on" section of this article.
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Bluetooth is off. Click the Bluetooth icon using a USB mouse and select "Turn Bluetooth On". Note: Mac OS X won’t allow Bluetooth to be turned off unless a USB mouse is connected.
Bluetooth offline. Restart your Mac. If the Bluetooth status doesn’t change, disconnect all USB devices and restart your Mac again.
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Mouse
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When your mouse is on and paired, and the batteries are charged, the indicator light glows steadily.
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Keyboard
Push and release the On/Off switch to turn on the Apple Wireless Keyboard.
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If your wireless keyboard isn’t paired with your Mac, the indicator light will begin to blink. This indicates your keyboard is in discovery mode and ready to pair with your Mac.
If the LED doesn't light up, remove the batteries to make sure they're good and that they're installed correctly.
Check preferences
From the Apple () menu, choose System Preferences, then choose Bluetooth from the View menu. The Bluetooth preferences pane will list the Bluetooth devices paired with the computer, the status of the devices (paired or connected), and whether Bluetooth power is on or not.
Click the gear icon and choose "Connect" to connect a device that is powered on.
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If the Mouse System Preferences pane is open and no wired or wireless mouse is connected, your Mac will immediately start looking for a wireless mouse (with Mac OS X v10.6. For Mac OS X v10.5, the Setup Assistant should open).
Keyboard or mouse intermittently stops responding
Click the mouse
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Check the battery level of the mouse. Choose System Preferences from the Apple (), then choose Mouse from the View menu. The battery level indicator is in the lower-left corner. Replace the batteries if they are low. Note: Choose Keyboard & Mouse from the View menu with Mac OS X v10.5. For more information on keyboard and mouse battery levels in Mac OS X v10.5, see Desktop computers: Troubleshooting wireless keyboard and mouse issues.
Press a key on the keyboard
Press a key on the keyboard to reconnect it with your Mac. It may take a moment for the keyboard to respond.
Check the battery level of the keyboard. Choose System Preferences from the Apple (), then choose Keyboard from the View menu and select the Keyboard tab. The battery level indicator is in the lower-left corner. Replace the batteries if they are low.
Check for signal interference
Wireless networks that operate on 2.4GHz may cause interference.
Move cordless phone base stations, microwave ovens, and other 2.4GHz electrical devices away from the Mac if you suspect interference.
Keep wireless devices within 10 meters (33 feet) of the Mac.
Avoid putting metal objects between the device and the Mac.
Mouse doesn't scroll up or down or side to side
For mice that have a scroll ball, refer to How to clean your Mighty Mouse.
Check the Scrolling speed slide-control at the top, and make sure the “Scroll” checkbox is checked.
For scrolling side-to-side, make sure the application you’re using supports side-to-side scrolling.
Remember, scrolling is done with one finger, and navigating is done by swiping side-to-side with two fingers.
Navigating moves from page to page in a document or internet browser unlike scrolling.
Mouse does not track as expected (jittery, jumpy, slow, fast).
The Apple Wireless Mouse can be used on most smooth surfaces, however if tracking issues occur try these options:
Choose System Preferences from the Apple () menu, then choose Mouse from the View menu. Set the Tracking slider to adjust how fast the pointer moves as you move the mouse.
Try using a different surface to see if the tracking improves.
Turn the mouse over and inspect the sensor window. Use compressed air to gently clean the sensor window if dust or debris is present.
If multiple Bluetooth wireless devices are in use nearby, try turning them off one at a time to see if the issue improves. Bandwidth intensive devices could affect tracking.
Mouse buttons do not work as expected.
The Mouse preference pane allows users to customize the mouse features to meet their needs.
Choose System Preferences from the Apple () menu, then choose Mouse from the View menu. Set the Tracking slider to adjust how fast the pointer moves as you move the mouse.
Try using a different surface to see if the tracking improves.
Turn the mouse over and inspect the sensor window. Use compressed air to gently clean the sensor window if dust or debris is present.
If multiple Bluetooth wireless devices are in use nearby, try turning them off one at a time to see if the issue improves. Bandwidth intensive devices could affect tracking.
Keyboard has one or more keys that do not respond.
Use the Keyboard Viewer to test whether the keyboard keys are responding correctly when they are pressed.
Choose System Preferences from the Apple () menu, then choose Language & Textfrom the View menu (or International from the View menu in Mac OS X v10.5 or earlier).
Select Input Sources.
Select the Keyboard & Character Viewer checkbox.
Enable the input source for the keyboard layout you are testing by selecting the checkbox next to it.
Make sure that "Show Input menu in menu bar" is enabled.
Choose Show Keyboard Viewer from the Input menu in the menu bar, as shown.
The Keyboard Viewer shows the keyboard layout.
Type the key on the keyboard that doesn’t respond and observe whether the corresponding key highlights on the Keyboard Viewer. If it does, that particular key is functioning correctly. In the sample shown above the shift and command keys are being pressed.
If the mouse keys feature in the Universal Access System Preferences pane is enabled, many of the keyboard keys may not respond as expected.
Try starting up into single user mode to determine whether a software issue is causing the issue.
Cheers,
Judy

My Mac Air Keyboard Lcked but Makes sounds as if invalid key is being pressed?

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