External hard drive works, but not with a docking station

hello,
I'm finding it difficult to use my docking station with my WD Cavier Green 2TB hard drive.
I know that the hard drive is in perfect working order as it still works with my many different leads and cables i have. But when i plug it in to my docking station i get the "unable to read' message.
I've checked disk ultility and the hard drive is there but the second name down reads disk1s1 and is greyed out.
I've read through the countless discussions and opend the ownership (when i plug it in with my many cables) but when i use the dock it claims there's no ownership.
I've tried verifying and repairing but an error message appears.
I've tried turning off the hard drive and docking station and turning it back on.
I've tried restarting my comuter.
And i've tried using a different cable.
it just seems odd that a docking station could stop my hard drive being recognised yet plugging it with many cables is fine.
Is it simply a case of my hard drive not being fully compatible with the docking station? or am i missing something?
Below is all my specs.
MacBook Pro
Mac OS X Lion 10.7.5
Hard drive
Western digital Caviar Green
WD20EARS 2TB
docking station
Akasa DuoDock S
USB 3.0
model number: AK-IC08U3-BK

Hello, I am having a similiar problem. I had an old MacBook that died so I took out the partitioned HDD and put it in an enclosure. The other day I plugged it into my other MacBook and both HDDs appeared (Mac and Bootcamp) but today only Bootcamp will appear. When I run the commands recommended above, I get this:
It appears as if there are two traditional hard drives? The first and second line? I'm not very Mac savvy so I don't know how to use the chflagg command to make these visible. Ultimately, I want to complete wipe this entire HDD (partition included) so I can have it fresh. Can anyone advise on how to make the Mac partition visible or how to complete wipe it and start fresh?
Thanks!

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