Launching Cisco VPN keeps erroring with "Could not attach to driver. Is kernel module loaded?". This is on OSX 10.5. I've run into this before and it always fixed with a restart, but not today.
Google reveals this helpful post: Howto Repair the Cisco VPN which came up with the magic incantation % sudo SystemStarter restart CiscoVPN
This worked! None of the others did, but I only need one thing to work.