Help, did yesterday's update on my Macbook Pro and it has crashed 4 times

Yesterday, I did the typical sw update when it came up. It went through and did the install, and shortly afterwards, I got the crash screen...rebooted..worked fine for a couple of hours and after a google search, crashed again. These are the first two crashes i have ever had on this MBP. Over the course of the evening, just checking email, etc, had two more crash events...anyone else having this? Any suggestions? Could/should I roll back to before yesterday..not sure this can be done...

Hi
Did you try repairing permissions after the update (Applications/Utilities/Disk Utility)?
Steve

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