vincent, although the 64bit OS X (leopard) is IIRC announced for september and i'd assume apple would release a 64bit logic version after this date we don't know anything about the behavior of this OS in detail and you should expect some delay until a 64bit VI will be available and everything works flawless.
a tiny issue seems to add: if i read the macPro specs correctly, there are still only PCI-express slots in the machine, whereas the RME MADI is *classic* PCI-card (although the connector looks like PCI 2.0 and therefore compatible to PCI-X slots) http://www.rme-audio.com/premline/hdspmadi.htm
christian
a tiny issue seems to add: if i read the macPro specs correctly, there are still only PCI-express slots in the machine, whereas the RME MADI is *classic* PCI-card (although the connector looks like PCI 2.0 and therefore compatible to PCI-X slots) http://www.rme-audio.com/premline/hdspmadi.htm
christian
and remember: only a CRAY can run an endless loop in just three seconds.