My 1TB Toshiba External Hardrive no longer works on my MacBook Air

I got a 1TB Toshiba External Hardrive and had no problems with it and added some pictures and everything to it however no it no longer works, or even shows up in the devices when i plug it in. I Saw that some others had the same problem and can't even find where they suggested to go to try and change it to read and right.

Not that I can tell. Suspiciously, we did run a salvo of updates from Software Update and the problems started immediately after, but none of those appeared to be directly related to Airport functionality (firmware or otherwise). Just to be sure, I took the "safe" steps of repairing permissions, re-downloading the last combo update & re-applying it. I also searched for any firmware updates related to Airport. What's odd to me is that the firmware reported on her machine is different than that on mine. They're both Late 2006 Macbook models, so that strikes me as odd (but maybe it isn't). I wasn't able to find any updates that her Macbook was lacking, however.
My (working) firmware is: [type] AirPort Extreme (0x168C, 0x87), [version] 1.4.8.0
Her (not-working) firmware is: [type] AirPort Extreme (0x168C, 0x87), [version] 1.4.4
Based on the card type, it doesn't appear that they're different chipsets, so I'm not at all clear on why the firmware versions differ. Was there a firmware update for Leopard that wasn't available/needed for Tiger?
Also, I know for sure that there were no firmware updates performed during the last set of updates ... that's a more involved process, if I recall, not handled through the standard updater, I think.
Thanks for the response!

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