UPDATE:
My host sent me the following entries from the server logs. They may help with debugging. My WordPress version is 2.7:
[Mon Jan 12 11:03:21 2009] [error] [client *********] script ‘/var/www/vhosts/whitingnet.co.uk/httpdocs/wp-includes/js/tinymce/tiny_mce_config.php’ not found or unable to stat
[Mon Jan 12 11:03:24 2009] [error] [client *********] script ‘/var/www/vhosts/whitingnet.co.uk/httpdocs/wp-includes/js/tinymce/tiny_mce_config.php’ not found or unable to stat
[Mon Jan 12 11:03:25 2009] [error] [client *********] script ‘/var/www/vhosts/whitingnet.co.uk/httpdocs/wp-includes/js/tinymce/tiny_mce_config.php’ not found or unable to stat
[Mon Jan 12 11:10:25 2009] [error] [client *********] PHP Warning: Attempt to assign property of non-object in /var/www/vhosts/whitingnet.co.uk/httpdocs/wp-includes/rss.php on line 449, referer: http://whitingnet.co.uk/wp-login.php
[Mon Jan 12 11:18:42 2009] [error] [client *********] PHP Warning: Attempt to assign property of non-object in /var/www/vhosts/whitingnet.co.uk/httpdocs/wp-includes/rss.php on line 449, referer: http://whitingnet.co.uk/
[Mon Jan 12 11:31:06 2009] [error] [client *********] PHP Warning: require(/var/www/vhosts/whitingnet.co.uk/httpdocs/wp-includes/compat.php) [function.require]: failed to open stream: No such file or directory in /var/www/vhosts/whitingnet.co.uk/httpdocs/wp-settings.php on line 238
[Mon Jan 12 11:31:06 2009] [error] [client *********] PHP Fatal error: require() [function.require]: Failed opening required ‘/var/www/vhosts/whitingnet.co.uk/httpdocs/wp-includes/compat.php’ (include_path=’.:’) in /var/www/vhosts/whitingnet.co.uk/httpdocs/wp-settings.php on line 238
Any luck fixing this bro ?
Indeed!
I have resolved the problem in my case.
Firstly flush all your caches and second check your server to make sure that the PHP Magic Quotes settings are disabled. You can do this on most hosts by adding the following to your .htaccess file in your WordPress directory:
php_flag magic_quotes_gpc off
php_flag magic_quotes_sybase off
php_flag magic_quotes_runtime off
Hope that helps!