Adding blogs to multisite doesn't work

Hi there,

I have a multisite installation that was recently moved from one directory to the rood directory on my server.

I have two blogs set up, but for some reason, whenever I try to set up another blog (add new site), even though it is listed under Admin Sites, the backend (wp-admin) reverts back to the main site’s wp-admin. The same happens when I try to visit the site on the frontend.

I have also noticed the following:

1. on going to the backend of the frontend, the ‘Edit Sites’ which would normally say the site’s name at the end does not show the name at the end.
2. my plugins that come up for upgrading are not upgrading – I wondered if there is a connection?

Has anyone experienced this?

Can anyone shed some light on this?

Please help!