Yiibong,
PPTP on 7b5 works very well for me and even seems faster than 6.0.1. You may have a configuration problem with your server, client or firewall/router.
Here are the 4 most common causes for pptp to fail.
1-Have you set the user(s) in the server-manager to allow VPN access?
2-Have you set the "Number of pptp clients" to more than zero in the "remote access" panel?
3-On your windows client(s), have you set your connection to Negotiate multi-link connections?
4-Is your server behind another router or firewall? if it is, have you forwarded the appropriate port (1723) from the firewall/router to the server?
All of these mis-configurations have been discussed multiple times on these forums. This comes up over and over at least twice a month. Search is your friend. Make sure you have these settings right and if you still have problems, report a bug here
https://sourceforge.net/tracker/?group_id=96750&atid=615772Paul