Just had this error message a few times, only managed to get back in just now.
Warning: mysql_query(): supplied argument is not a valid MySQL-Link resource in /home/cockerso/public_html/discuss/Sources/Subs.php on line 321
Warning: mysql_error(): supplied argument is not a valid MySQL-Link resource in /home/cockerso/public_html/discuss/Sources/Errors.php on line 123
Warning: mysql_errno(): supplied argument is not a valid MySQL-Link resource in /home/cockerso/public_html/discuss/Sources/Errors.php on line 124