Tried to log into my dashboard on my sandbox site, http://testlab.popularlogistics.com
Got the following error message:
Fatal error: Call to undefined function register_sidebar() in /home/popularl/public_html/testlab/wp-admin/includes/dashboard.php on line 13
Looked in the forum - several people had this error message, apparently having to do with a plugin called "disable all plugins" - I don't have that installed.
Tried to reinstall - my host uses Fantastico - so reinstalled 2.5.1 over what HAD BEEN a working install of 2.6
The other installs of WordPress on my server are behaving themselves. I have FTP access - but don't know what to delete - except to delete everything and start over.
Does anyone have any thoughts/suggestions?