Cool...

OK - so I have the Polar being used with the following setup: G5 iMac with OS X 10.4.2 with 1.5Gb RAM using Digital Performer 4.6 with projects at 24-bit/44.1kHz. I also have a Motu 828Mk2 as the main audio interface and a Lacie Porsche 250Gb firewire hard drive. This is what's happened so far...

v1.01 - Polar set up without a problem and the AU plugin can be used on an instrument track - full control between the virus and the plugin. Open up 1 or several midi tracks and midi recording is enabled and works fine. Audio can be recorded from output 1+2 on the virus through the 828 or as Mix track via the USB cable. Only problems are CPU overhead - regularly between 40% and 60% with occasional spikes into the red at 100% - this is with a latency of 256 samples. If I bring this up to 512 samples, CPU is now at 30 - 50% with no red spikes. The CPU overheads are noted with 1 Ti plugin and 1 24/44 audio track as a backing track.

v1.02 - Still the same CPU overhead, but now, while playing the song, if I change a patch while DP is playing, DP crashes every time. Now can hardly do anything without DP crashing on me.

Despite these niggles, the Polar sounds amazing - definitely in on a new level over the Virus KC. BTW - I have used several normal VI plugins and up to 20 audio tracks at the same sample rate in DP and never get a CPU overhead of more than 50%. Similarly my Nord G2 never gives me any problems with this either. In fact DP has been the most stable DAW I've used - this is the first time I've experienced so many crashes.

Any other Mac/DP users out there that can help?