Network Problem : Host-only Adapter

[Gil]

Hello!

I was running VirtualBox v3.1.0 windows version on a:

HOST : MS Windows Vista Home Premium SP2 GUEST : MS Windows XP SP3

That guest only have 1 network adapter : 'Host-only adapter'

After the new release I've decided to up-to-date my VirtualBox from v3.1.0 to the new v3.1.2. Everything went smoothy.

But now with the new version 'v3.1.2' and without any other changes except 'Guest Addictions' update, the network fails to be able to comunicate with the host and vice-versa.

I have no custom configurations at either network cards nor host's or guest's.

And further questions you can relay them to my email.

Thanks in advance.