I've double booted Ubuntu 16 version onto an old Aspire One with Windows 7 with 1 GB RAM and both it and the Windows 7 program work flawlessly. Except that while I can log onto WiFi with the Ubuntu, I can't hook it with my commercial VPN system, with which I have no problem with the Windows 7, or with the Ubuntu 16 on another old, bequeathed laptop. When I try to set up the VPN, nothing happens, the usual info login request boxes not appearing. Any thoughts? Thanks to all.