Problem w/ Internet sharing (VPN -> Ethernet)

Hello,

Here's my problem: I'm using Apple Airport Express connected to Ethernet cable and have to use VPN to connect to the Internet.

I have another computer in this room which I would like to connect as well. What I did in OSes prior to Lion: I would share my connection from VPN to another (Win 7) computer using Ethernet cable and it worked just fine. Lion broke this (partially): some sites will load (like facebook), and others (like, google or gmail) just won't. Neither 10.7.1 nor 10.7.2 GM fix this.

How do I fix this? This is getting annoying.

 

So no one except for me encountered this?