MDP-DVI No Workie, mini DVI-DVI Do!  Why?

Just set up my Mini 09. Had stopped by Apple store and picked up MDP-DVI adapter. Plugged it in to my Viewsonic vx 2235, pulled DVI from Mac Pro 2nd display, first time start up, no digital input on display. Swapped MDP with mini DVI adapter (included) and voila, good to go. Shut down, swapped back to MDP-DVI just to check if I did something wrong the first time with same original result, no digital input on screen. What's up with that? Does MDP require special display or something? Maybe defective adapter

It could be a defective adapter. Trying it with another monitor would be the best way to tell.
If you check the unibody MacBook or MacBook Pro display forums, you will see that there have been lots of compatibility issues with various displays on the market since the advent of DisplayPort at Apple. There is an extra signal translation that has to take place to get from DP to DVI. It seems like there are monitors out there that don't like the way nVidia does this translation.

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