My new display has a Mini DisplayPort, but my computer has a DVI connection. I didn't read the tech specs closely and now I have a display that can't connect to my computer. I've read about the Atlona dual link converter, but I've heard that will only work if my graphics card (ATI Radeon HD 2600) supports the resolutions that are available with the display. (I made a mistake in the subject line - my mac pro is early-2008.) What resolutions does the 27" have, such that I may check that against my current graphic card? I'm also thinking about just buying a new graphics card. What graphics card will both work with my computer and with the 27" display? (The page for the ATI Radeon HD 5770 at the Apple Store says mid-2010, but my Mac is early-2008. Additionally, my System Profiler says I have PCIe, whereas the previously-mentioned card need PCI Express 2.0. Are these incompatible?) I'm a but stupid about these things, so thanks for any help.