Hello MacRumors Forums!!
I have a problem with my Macbook Pro on Mac OS X Lion.

The Problem is normally like this: I turn on my Macbook, do some work, leave it on for some time, and when I try to click on something, it doesn't respond.
It doesn't even go to sleep! When I close the lid, and when I open it, it's still stuck.

So the only option is to hard shut down it.
hard shut down is when you push the power button for a long time, and your Mac shuts down, no matter what.
I'm putting this on Mac OS X Lion, not Macbook Pro, because it didn't act like this on Mac OS X Snow Leopard.
Thanks for the help!!

I have a problem with my Macbook Pro on Mac OS X Lion.
The Problem is normally like this: I turn on my Macbook, do some work, leave it on for some time, and when I try to click on something, it doesn't respond.
It doesn't even go to sleep! When I close the lid, and when I open it, it's still stuck.
So the only option is to hard shut down it.
hard shut down is when you push the power button for a long time, and your Mac shuts down, no matter what.
I'm putting this on Mac OS X Lion, not Macbook Pro, because it didn't act like this on Mac OS X Snow Leopard.
Thanks for the help!!