Can You Default to Single Sign On for Remote Users?

Hi Everyone,

I have a simple question.   I currently have a working Microsoft VPN setup.  My remote users can turn on their computers, press CTRL+ALT+DEL and choose Network Logon to perform the single sign on function to connect to the VPN.  But doing so requires more clicks and users often forget to connect to the VPN.  I was wondering if anyone has figured out a way to default to the single sign on so that by default the laptop will try to connect to the VPN? 

I ask this because some of my users spend about 99% of their time away from the office.

Thanks!