Help~! 10.5.2 does not wake up from sleep.

Hi,

I am currently having this problem whereby my MacBook Pro refuses to wake up from sleep after i performed the 10.5.2 and graphics update.
Whenever i close the lid and wait till the white light to start pulsating, it does not wake up when i re-open the lid... Anyone knows why?

a few macbook pros have been having this problem, me and my friends' included. i dont know why this happens but generally for us, a restart usually does the trick. it's probably just a bug that apple needs to work out. Hopefully by the next update there will be a fix for this.

hmm.. it seems to be solved after resettin the SMC controller and the NVram... will monitor and see how.