I upgraded to 2.3 - after the upgrade the home page displays properly, but links to older posts, my 'about' page, other internal pages and the RSS feed have all stopped working:
"The requested URL /wordpress/feed/atom was not found on this server."
Things I've tried:
- going to a default theme and a known 2.3-ok theme
- looking for the blank-line problem (though it seemed a long shot)
- clicked Options/Permalinks/Update Permalink Structure (didn't swap the stucture - yet - don't want to mess up inbound links)
Obviously, none of the above fixed the problem. Any suggestions or pointers to forum topics would be gratefully received.
PS - everything is still there - I can see/edit via the admin pages.