No, the firmware is actually the same on Mac and PCs. Only the driver that interacts with the Multibridge on the computers are different so just install the Mac driver and you will be good to go.
Have a look at your Display prefrences again when you have time and see what frequency it is set to? The default output will be 1920×0180 at the refresh rate of 60Hz so if you’re in PAL land and using a display that only supports 1080 at 50Hz, you’ll need to switch the refresh rate.
We don’t provide any real time effects. All RT effects are handled by the application’s internal RT engine. So with Final Cut Pro, for example, you’ll be using its RT Extreme engine.
When you run audio out of the PC’s sound card, it runs on a different hardware clock than the Intensity card which explains why the audio is not in sync. We recommend monitoring video and audio off the same hardware device for accurate sync.