32 of 36 people found the following review helpful
Often causes video problems,
This review is from: Apple Mini MB571Z/A DisplayPort to Dual-Link DVI Adapter (Personal Computers)
For a few months I was using the regular mini displayport to dvi adapter with no problems at all (with a 24" monitor). This week I got a new 30" Dell monitor (DELL3007WFPHC) and the mini displayport to dual-link dvi adapter. Our IT guy warned me that several other people in our company have been having problems with the adapter. The adapter and monitor worked fine when I first connected them.
After using it for the first day, I don't believe I had any problems at all. On the second day, I began to have the problems mentioned by our IT guy and by several other people on the Internet. Occasionally, the screen will either contain static (or snow), or alternating horizontal lines will be shifted a few pixels. These problems occur while I am actively using the system (not when coming out of sleep mode, etc.) Regardless of the behavior, the only recourse is to unplug the displayport cable, which causes all of the windows to be repositioned on the laptop, and then plug the displayport cable back in. Then I have to move all of the applications back to their original locations.
This is partly into my third day with the adapter and have had to unplug and replug it about 4 times already. Our IT guy said that our company has returned several of the adapters, but the replacements don't work any better than the ones they have returned. There is obviously something broken in the design of these adapters, but hopefully this will be fixed sometime in the future. I am considering going back to my old 24" monitor so I don't have to put up with these problems. All of my coworkers with older MacBook Pros (with the built-in dual-dvi adapter instead of the mini displayport) do not have any problems with the 30" monitors.
If you have a monitor with a high resolution that requires dual-dvi and an Apple laptop with the mini displayport, then this adapter is your only solution to get it to work. Unfortunately, I think you are almost guaranteed to have problems with this adapter.