Steve,
I know that over the years some folks have had some issues with Matrox cards. We didn't sell DigiSuite, but we've been with them since the RT2000. Now that cardset was a nightmare to install, but we took the time and effort to learn everything we could about the issues and working with Matrox we were able to create some cookbooks and tech docs that made it work for more people. It still was a nightmare for those who ran into problems, but we kept on trying to make it better. With each new generation of Matrox RT products we have seen better compatibility and easier installs.
With the RTX.100 Matrox introduced a card that was as stable as the Canopus DV Storm. Canopus had set the bar for stability and performance as a Premiere accelerator. Unfortunately for Storm owners, when Adobe moved on to Premiere Pro, Canopus was unable to maintain the stability and performance that had made them tops in our market.
Matrox on the other hand was able to deliver solid drivers for Premiere Pro and then Premiere Pro CS2. With each FREE driver release they not only added compatibility with the new version, but additional features to the toolset. They continue to be by far and away the best hardware solution for Adobe editors. While others offer I/O - only Matrox delivers real-time performance, additional features and effects, accelerated rendering and an HDV workflow that works.
Note: We have been a Cinform dealer and supporter since before they where Cineform. I think that Aspect HD is a very cool plug-in. I am amazed at what these guys can deliver with software only. But the Cineform workflow isn't for everyone either.
Getting back to Matrox. I do think your idea about them publishing a knowledgebase of issues is a good one. While their support forums offer this information, it would be beneficial to have it be in one place as a reference.
As far as compatibility with motherboards Matrox has done a great job not only publishing a pretty extensive list of approved hardware, but you can drill down for specific installation instructions including what slot to put the card in and what drivers / updates to install for the mobo & graphics card.
http://www.matrox.com/video/support/rtx2/rec/computer.cfm
One of the things I'd like to stress here is the importance of buying your Matrox card from a Gold Dealer. These guys have extensive knowledge about the cards and many submit their turnkey solutions to Matrox for evaluation and testing. If you plan on using your own computer, review the specs with the dealer and they can recommend any changes or modifications that will make everything work better.
Gary
http://www.videoguys.com/rtx2.html
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