First ... sorry for my english
Hi, there is a little bit of confusion
ppp stands for point-to-point protocol and it is used to provide an internet connection over a physical connection (PPPoA or PPPoE).
pptp stands for point-to-point tunneling protocol and it is used to provide a tunnel over an existent connection (as an example for a VPN over a "normal" adsl line). If u wish to create a vpn u have to install openvpn package.
Second, which problem do u have with the video card? Maybe a configuration problem?