Mini stopped recognizing thunderbolt external drive

I bought a Mini just a couple weeks ago and a LaCie 2big Thunderbolt drive. It's been working flawlessly, but today it doesn't recognize the drive and doesn't recognize even having Thunderbolt support and I can find nothing on Lacie's site or Apple's regarding this issue.

Hi John,
It sounds like you may have some sort of motherboard issue?
As I'm using Thunderbolt too.....
From my experience having intermittent USB/Firewire ports I would suggest to do the following:
1) Shut down your whole system including the Lacie TB drive.
2) Pull out the power cables from both your computer and Lacie unit. Pull out any USB cables from the Mini as well. Leave the system powered off for at least 30 minutes before plugging it all in and starting the computer.
If the above fails:
3) Try a PRAM reset on the Mini by shutting off the Mac first, then holding Command, Option, P & R keys together while pressing the power button to restart it. Let go of the keys on the second chime. Failing that....
4) With the power cables unplugged, try to hold the Mini's power button down for 10 seconds. Then replug everything in and restart the system.
5) Check if you have the Thunderbolt update installed on Lion > http://support.apple.com/kb/DL1451
Hope that helps.

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