Wake from Sleep Problems

With Lion, I've noticed two problems.

One, when opening the cover on my Macbook Pro laptop (2+ years old) the screen is sometimes black but the computer is active (pressing the shift lock toggles the green LED). At first I would hold the power button down and restart it. Then I noticed one time that something was on the screen. Turns out the screen is active but the back light is not coming on. One time, holding a flashlight I was able to restart it and another time I closed the lid and when I opened it, the back light came on.

Another problem is that the wi-fi doesn't always come on or at least sometimes comes on after an extended period (1+ minutes?). Restarting will fix that but I still have to try closing the cover, let it go to sleep, and then open it again.

Hopefully these will be fixed in the next version.