Quote Originally Posted by Mr_P View Post
are you running in 32bit mode?

...most apple applications do not support 64bit mode - including quicktime. Quicktime is still a 32bit application. Active Silicon Drivers (and many others) are currently only 32bit...
Just a Note: Instead of using command line tools to force 32 bit boot, use this nice little application. Make sure to READ EVERYTHING.

32- or 64-bit Kernel Startup Mode Selector

Quote Originally Posted by Mr_P View Post
By default all new 2010 MacPros boot in to 64bit mode.
A suggestion: Get a 2006 Mac Pro with an x1900 or a 2008 Mac Pro with an 8800. These machines seem to do Catalyst Best

Quote Originally Posted by samsc View Post
...but decklink is very picky on what it likes - edid/screen size/refresh has to be exactly right...
This is such the case. Terrible... If you want to try using a Decklink devices then instead of using the Intensity Cards, try using the Multibridge. I've been using servers with the Multibridge and m331 and everything seems to work well. We were using them with 10.6.0 but we are experimenting with 10.6.6 and will post results shortly.

The advantage of the Multibridge is that you can run Catalyst with an HDMI (also means DVI with very specific settings) OR you can use the HD-SDI. The HDMI(DVI) and HD-SDI outputs also work as pass-throughs so you don't need additional DAs when jumping multiple servers. The other advantage is using the analog or Digital Audio IN and OUT with the Multibridge.

Still, above all else, I suggest using either a Phoenix or LFG4 with Catalyst. If you need DVI or VGA as an input then also purchase a companion TVOne Scaler/Converter but feed it into the Phoenix.