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Hello there! Sorry to hear that your having issues with your macbook. Please follow the steps below to reset your macbooks configuration settings. That should help clear out some of the issues your having.
1. Shut down the Macbook Pro.2. Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.3. On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.4. Release all the keys and the power button at the same time.5. Press the power button to turn on the Macbook Pro.6. Press and hold the Command-Option-P-R keys before the gray screen appears.7. Hold the keys down until the computer restarts.8. Release the keys.
if your still have issues.
Reboot into the Recovery HD by choosing the ‘Apple‘ menu > Restart, hold down the ‘Command’ + R’ keys on the keyboard during the start up process when you see the Apple Logo you can let go. When the Macbook boots you will see the OS X Utilities screen., select the Disk Utility and then select Continue. Then in Disk Utility select Macintosh HD in the left column, if there are two or it is named something else choose the first indented item, and then select Verify Disk on the right. If that is OK in green type then select Repair Permissions. Close out the window then from the menu bar select quit installer and your mac will reset.