A Thunderbolt display will work plugged into another Thunderbolt display.
A Mini DisplayPort display won't work when plugged into a Thunderbolt display.
"16. Can I connect a Mini DisplayPort display to my Apple Thunderbolt Display for computers that support using more than one display?
Mini DisplayPort displays will not function if connected to the Thunderbolt port of an Apple Thunderbolt Display. Displays connected via Mini DisplayPort video adapter or cable to the Thunderbolt port of an Apple Thunderbolt Display will not work."
It will work if you connect a Thunderbolt drive between the displays.
Thank you very much for your input!
Seems a silly oversight considering the extra port on the back
I'm going to the apple store tomorrow and we're going to try a USB adaptor. I'm wondering if there is a Thunderbolt splitter adaptor that can be connected to the MacBook?
Keeping my fingers crossed.
USB doesn't carry the video so USB adapters won't help. Try a Thunderbolt drive between the displays
using a Mini DisplayPort to DVI adapter plugged into the second Thunderbolt port of the drive for the second display
You should be able to use the Thunderbolt base with your existing drive
Connect the Thunderbolt display to the computer, the drive to the display, and the second display to the drive (via adapter).
You will need a Thunderbolt cable between the drive and the Thunderbolt display.
Thank you Malcolm for your input,
I was in the apple store today and their employee gave me everything I needed to test my ideas.
The result was, Yes the Seagate Thunderbolt Base was enough to break the chain and have the screen recognized. A rather expencive work around!
I pleaded my case to the manager that I originally spoke to, saying that when I was doing my research, three employees told me it would work. His was very understanding and took $40 off the retail price.
Intersting thing is the people in the store learned something today, if it wasn't for you and this forum, we wouldn't have known about this fix. It also shows us there is need for a Thunderbolt Hub or adapter; have to wonder what the price will be?