Well, I just got my new dual 2.8 ocho core Mac Pro from Apple on Monday. Very nice machine thus far, encoding a movie full resolution h264 in 25 minutes, whereas my toshiba laptop would encode in about 6-7 hours and my G5 imac in maybe 12-14 hours! So, I am happy with the possibilities enclosed within the fine aluminium skin. One complaint. Has anyone experienced a slight pop or click sound *just* before audio comes through external speakers? It only pops once, not loudly, and it happens only after a restart or bootup. It happens if the machine has been on for ten minutes or maybe as little as ten seconds, but it won't occur until a sound is emitted from the speakers (only the first sound. after that, no pops again until another reboot). Any ideas/knowledge on this? I used the factory installation of Leopard and updated all softwares. I use the optical out jack in the back. These same Boston Acoustics speakers were used on my imac G5's optical out just days ago with no ticking sound like is happening now with the Pro.