Can someone please help me with this?
I've been using the Explorer browser.
Yes, yes, I know: wrong!
Anyway, I just installed Firefox, and it as the default browser, and had it disable all the add-ons it didn't like, then restarted it.
Then I started WAMP and tried to reach my local install of WordPress at http://localhost/wordpress/admin and got the dreaded "The requested URL /wordpress/admin was not found on this server" message in the browser window.
It works fine in Explorer, but not in Firefox.
What on earth have I done?
Any help is greatly appreciated.