"System [.kext] extension cannot be used"

Hi -
I'm running OS X 10.6.8 on an iMac.
I just installed an iTunes update, and got the warning 'The system extension "/System/Library/Extensions/IomegaSAM.kext" was installed improperly and cannot be used. ...'
I'm using a 360-GB Iomega external hard drive for my Time Machine backups.
In case it's relevant, a couple of days ago I had problems with this drive and used Disk Utility to erase the Iomega drive and verify that it was now OK.
The Iomega drive now does seem to be working just fine - it just did a Time Machine backup without any problems.
So - can I simply ignore the "System extension cannot be used" warning and forget about it?
TIA for your answer.
<Email Edited by Host>

Finder > Computer > Macintosh HD > System > Library > Extensions and find any kext files with Iomega in the name and move them to the desktop
Especially IomegaSAM.kext
I have Snow Leopard here and there is no default Iomega files in that folder, so your good to remove those with Iomega in the name.
Reboot.
Must have been a program you ran when you first got the drive, like a backup or something and never used since, it happens.

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"I get the error message after updating itunes:
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Thanks for the reply. I'm not experienced in the inner workings of the iMac system and its programs, so please follow my train of thought as I try to find and understand your reply.
You wrote that I should check out "Please see - AppleUSBEthernetHost.kext error on installing iTunes update" and I did so.
There I found your reply of 9/1014 7:06 PM to j'ski stating: "There is a larger thread here which you may want to follow - system extension cannot be used AppleUSBEthernetHost.kext ."
And an earlier Post by Greg Earle of 9/10/14 5:57 PM stating: " You would have been better off doing open /System/Library/Extensions and then finding the AppleUSBEthernetHost.kext kernel extension icon in the Finder window that came up and moving it to the Trash."
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System Extension cannot be used "//System/Library/Extensions/appleUSPEthernetHost.kext" was installed improperly...

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What's this?

Niel,
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In running the Software Updater, I encountered an error: "System Extension cannot be used" ... System/Library/Extensions/AppleUSBEthernetHost.kext was installed improperly and cannot be used.

While running the Software Updater, I encountered an error: "System Extension cannot be used" ... System/Library/Extensions/AppleUSBEthernetHost.kext was installed improperly and cannot be used. Can somebody help me resolve this error message. Would this error affect my ability to run FaceTime ?

Seems pretty clear to me. Here's what you can try:
Open Terminal in your Utilities folder. Paste the following at the prompt:
sudo chown -R root:wheel /System/Library/Extensions/AppleUSBEthernetHost.kext
Press RETURN. Enter admin password when prompted. It will not be echoed so type carefully. Press RETURN again.
Restart the computer.

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(118910)

System extension cannot be used --can anyone help ?

so i spotted that the system library as well as the home library had permissions blocked for the administrator, so i unlocked all enclosed items permissions.
i already had issues being brought to senior advisor attention over 1,5 years now, about hangs and freezes. mostly hangs.
no one so far has been able to fix them.
well now spotting these warnings, after i allowed all permissions inside both libraries, have warnings show up.
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There isn't an "administrator" so who did you add and what permissions did you set.
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wheel read Only
everyone read only
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"System [.kext] extension cannot be used"

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