As I understand it, thunderbolt ports are backwards compatible with mini display port based hardware, but not vice versa…
meaning, as I understand it, you can't hook a thunderbolt based device into a mini display port, but you can plug a mini display port device into a thunderbolt port.
Ive been able to plug a mini display port to hdmi converter into the thunderbolt port of my new macbook air, works no problem…
Confusing, yes! It took me a while to get over the fact that thunderbolt ports and mini display ports look exactly the same…
Apple store employees are very hit or miss… they are light years ahead of your average best buy employee, but with power users such as your self chris, I wouldn't trust 'em!
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tony romain | principal/creative director
trance
motion graphic animation and design
323 651 1114
www.trancedesigns.com