My corporate Vista build included Cisco VPN 5.0.00.0340. On XP Cisco has never been a problem. So, I naturally started bad-mouthing Vista (I learned it from the Mac/PC commercials). Resetting adapters, rebooting, TCP settings, you name it. Almost each morning, I'd waste 5-20 minutes. It pissed me off, because one thing we developers know, is an algorithm is repeatable. A co-worker from Ops was able to logon to Cisco and download a new version of the client. Now why the heck do you need a special id for that? Hey Cisco - it's the hardware. OK - so you know the answer already - it's VPN 5.0.01.0600-k9.