MacBook won't start after latest OS update ("Possible memory corruption")

I am running a late 2009 MacBook, 250GB, 4GB ram. I have just updated the OS (standard, regular update), iTunes and an older iMovie update. I made the necessary restart, and begun using iTunes. After 5 minutes, it crashed, and when turned back on, the startup apple logo screen was filled with command prompt code. The only thing I can do, is to force it to shutdown. At the top of the command prompt text, it now says "possible memory corruption".
Latest update: I am now met with a black screen every time I turn on - the "sleep" light is on, but that appears to be all that's happening.
Help!

Do you have any 3rd party memory modules installed? What system did you upgrade from? What MacBook module do you have, i.e.
Check the memory modulds to make sure they are securly seated and try again. If you have 3rd party modules installed remove them and leave just the original Apple modules and try a restart.
OT

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Posts: 8,431
From: Alameda CA Bay Farm Island
Registered: Aug 5, 2005
Re: G4 wont boot after latest security upgrade
Posted: May 22, 2009 2:51 PM in response to: voiletmay
Click to reply to this topic Reply email Email
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MacBook won't start after latest OS update ("Possible memory corruption")

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