I use VPC and connect to my clients through Cisco VPN ... (I have networking set to Virtual Switch)... One reason to use VPC is that I do not want all my internet traffic to go through their networks ... I can use Safari, mail, etc without them able to monitor any of my internet traffic from the MAC while connected. My larger clients even stop POP mail traffic, so I could not check e-mail while logged in with a PC or if I used VPN with just the MAC. > FWIW, I use Cisco VPN Client for Mac OS X 4.0(rel) with Mac OS X > 10.2.6 directly, no VPC, and it works fine. > > Bill >