Unable to access iOmega external hard drive

Hope I am posting in the correct location.
I have had two externals, an iOmega and a Seagate, connected to my iMac for a year or so. Have always been able to access their contents from most any program. Mostly I use Photoshop Elements and Final Cut Express.
For some reason the iOmega does not show up in the Devices drop down menu. It means I must drag an item out onto the desk top from the iOmega to open it in Photoshop or FCE. Really time consuming.
The iOmega still shows up on the desktop and appears to be be complete and working fine.
Any suggestions greatly appreciated.

If the above settings corrections don't work...
I'd Zap the Pram: http://support.apple.com/kb/ht1379
Check for drive in Devices.
Then I'd use Apple's Disk Utility program - Applications/Utilities/Disk Utility - and run the Repair Disk system on the drive.
Both of these recommendations are generic tests that fix a multitude of issues with hard drives on a Mac. They do not change any of your files.
Message was edited by: dechamp

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