VPN over PDANet

Good afternoon, I'm using usb tethering with my Motorola Droid to my laptop. The data connection works however when I try to connect to VPN using pdanet tethered data connection on the laptop I get an error 619 - could not establish connection.
PDANet faq says to setup vpn on the droid and it will work, I have done that and it is set up correctly as I can connect to vpn with the Droid alone.
It is standard pptp vpn connection. I am not restricted by pdanet trial usage restrictions.
Has...

VPN over PDANet

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