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Here is some more information about Kernel Panics from the article named OS X: About kernel panics found here http://support.apple.com/kb/ts3742
In most cases, kernel panics are not caused by an issue with the Mac itself. They are most likely caused by an issue external to the Mac. If the kernel panic doesn't happen again within a few weeks, you don't need to troubleshoot further.
To help avoid kernel panics, install all available software updates until Software Update reports "Your software is up to date". OS X updates improve the tolerance for external issues such as malformed network packets and so forth. For most kernel panics, updating your software is all you have to do.
Important: If the Mac has another kernel panic within a few weeks, refer to the "Troubleshooting a recurring kernel panic" section below.
Note: If the hardware and software on the Mac checks out as OK, yet recurring kernel panics still occur, it is possible that something on the network is sending the Mac malformed network packets. In these situations, check the devices on the network. Make sure the router's firmware is up-to-date, and that the router is functioning. Refer to the router's manufacturer for service and support.
Also, it would not hurt to reset the PRAM, the SMC and booting to safe mode. Here are the articles, in that order about how to do each.
About NVRAM and PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
Mac OS X: What is Safe Boot, Safe Mode?
Thank you for your input - I am not a great technical person - I am concerned perfofming the follow ups you list - should this happen again - I suppose I will have to go the GB!? I thought I saw in the pages I copied of the report before I sent it to Apple, that something was said about RAM indeed!. Thank you again