Macbook Pro Sleep Error
I need to know what to do with my mac. When I first received it I had no issues but after about 3 months use, I began seeing problems. After letting my mac fall asleep, when I attempt to wake it up the screen will momentarily light up rendering the cursor visible and the keyboard will proceed to light up as well. Every time a key is clicked after that the error tone will persist. The only way to get out of this "freeze" is to manually shut off the computer and turn it on again. However, the next time it goes to sleep it will proceed to do the same thing. What is wrong? What do I do?
OSX 10.8.2
2.5 GHz Intel Core i5
8 GB 1600 MHz DDR3
Serial Number: C02J*****V30
MacBook Pro, OS X Mountain Lion (10.8.2)