I've been working on a new site for over a month. Yesterday everything was working fine. Today the hosting service migrated everything to a new server. I had to update the IP's of the nameservers, etc.

Now when I login via a login block - it doesn't actually log me in - same goes with logging in via the index.php/login page - it just refreshes to same login page.

I had the host re-copy the entire directory and DB from the old server to the new one - but same problem. Also, during the migration when I could login off and on, when I tried to edit a page, I got the Access Denied error on everything.

I don't want to loose the month's worth of work by having to do a complete reinstall - any ideas? BTW, using the latest version as of today's date.