http://www.amazon.com/Toshiba-65L9300U-65-Inch-Ultra-240Hz/dp/B00DG0977S Since Costco has the Toshiba 65" 3D 4K display for sale for $3000 right now, I brought my MacBook Pro 17" with the Accell mini-displayport -> HDMI 1.4 active adapter in (which drives my Seiki 4K just fine) to try it out. I was trying get the Toshiba to run at 4K, but it would only come up as 1080p. Higher resolutions were not available. When I tried setting it to 30Hz (what I use to drive the Seiki 4K), the Toshiba wouldn't sync at all. Has anybody tried the Toshiba 4K 3D display? Driven it at 4K from a Mac? How? What computer(s) and adapter(s)? For those that are interested in pretty movies/pictures of the Sun, I have basically unlimited 4Kx4K content (I work on the SDO/AIA science team). It would be pretty easy for me to make 3840x2160 native resolution cutout movies of SDO data... Anybody want some?