virtualbox.org

I install suse 8.1 on two virtual machine (virtual-host), my problem is, when i disabe VT-x/AMD-V, i cannot install suse on virtual machine. When i enabled VT-x/AMD-V, i can install suse 8.1, but the problem i can ping my real machine with ip 10.1.1.1 (using host interface with bridge) and two virtual machine 10.1.1.2 and 10.1.1.3.
10.1.1.2 can ping 10.1.1.1
10.1.1.3 can ping 10.1.1.1
10.1.1.2 can not ping 10.1.1.3 (vice-versa). Error Destination Host Unreachable.

I Need help, Anybody can help me please.....! thanks

Which version are you using? What is the full setup and config of your network? Can you please post some more information on how you set this all up.
There is an active link on your adapter, right? This is needed if you use 2.1.x with the new HIF system.