External HD not shown in Finder

I have several EHD's connected to my late 27" 2011 iMac running 10.9.2, one EHD has my SuperDuper backup on it however it does not show up in the Finder Sidebar. Whereas all other EHDs connected (Time Machine drive and 2 other EHDs) do show up. I looked in Disk Utility and the SuperDuper EHD does show up and is operational, I have also restarted in Recovery Mode to see if the drive shows up and is bootable and it is. The only issue is the drive does not show up in Finder's sidebar. In 10.9.1 I had no problems, this just started when I installed 10.9.2. I have run Disk Utility and Repaired Disk Permissions however that's about it. Maybe a PRAM or SMC reset would work.
Anyone have any ideas?

I did toggle the sidebar buttons and that didn't help, but the plist idea is a good one. I have a troubleshooting account set up on machine and will see if the issue is just in my local account, if it is that points the finger at my normal user account and probably my user account Finder Plist. I can all use Terminal to restart Finder and see if that helps. Thanks for the suggestion.

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External disk not shown in finder or diskutil

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You could run a Apple Hardware Test but I think the solution will be determined at a genius bar session. I would suggest you make an appointment.
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I used the SSD in another MBP till it broke down (logic board failure). When I bought a new MBP I took the SSD out of the old one and put it in a casing with USB connection. I could rescue all data to my new MBP. Then I erased the SSD with tthe intention to use it only for photos. It has worked fine for some time.
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I've surfed around already before having my problem posted here because it's so frustrated…
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Edited by: user614694 on Oct 6, 2008 3:09 AM
Edited by: Ronald van Dijk on Oct 6, 2008 3:10 AM

Hello Ronald,
Your code looks fine to me. Although xsl-fo is not very friendly for a slight change...
This is an example I use during my PDF printing presentation:
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(change o11g1.apex-evangelists.com:7779 to your hostname:port - and see that you get the image by using the url)
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Regards,
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http://dgielis.blogspot.com/
http://www.apex-evangelists.com/
http://www.apexblogs.info/

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See here:
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here is the screen shot

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External HD not shown in Finder

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