My blog has long been at http://www.mydomain.com/wordpress/
I wanted to move it to the root.
I didn't search the forum before I started.
I changed both the URI and Blog Address under Options to http://www.mydomain.com.
Everything broke. Then I searched, found the instructions to use phpMyadmin to change the settings back - since I could no longer click the "update options" inside WordPress without getting an error: "Sorry, you need to enable sending referrers for this feature to work."
I followed the phpMyadmin instructions carefully - entering http://www.mydomain.com/wordpress in BOTH the siteurl and home rows of the wp_options table.
For some reason - it still doesn't work. The files remain in /wordpress - but they are clearly still set to try and call the files from the root directory.
(and yes, I cleared my cache and cookies)
Many thanks in advance.