My 1.3.7 install has worked with no issues until today, when I could not edit a product description without getting a permission denied error. Similarly, when I try to upload an SQL patch, I am denied permission:
'You don't have permission to access /xxxx/admin/sqlpatch.php on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request. '
I have changed permissions on sqlpatch.php, cleared cookies, emptied cache and temporarily removed .htaccess, all to no avail. Any suggestions?



