Today, i was on my macbook Pro, and set it down for a while. It went to my Screen Saver, and then when i went back to work on it again, i was able to type for like 4 or 5 mins, then it my keyboard just stoped working. i've been trying everything and reading a lot of different forums and have no success from anything that anyone has said. i'm just wondering if anyone has anything that might be able to fix this for me.

my MBP is about 1.5 years old. i do school work and also play video games on it.