After installing 10.6.3 on my white macbook (core duo - early 2006) I've been having issues waking it from sleep. Well, the computer wakes - but the screen is completely dimmed - I can faintly see my desktop and when I adjust the brighten I can see the bar move but the screen doesn't change. Closing my macbook and opening it again doesn't fix it - I have to put the computer to sleep by clicking on the apple and selecting sleep. Anyone else having this issue? I should also mention that I set my macbook to dump the current state onto the HDD and completely turn off rather than do the quick sleep with the fading light.