[root@mail:/usr/local/www/roundcube/logs]# cat errors 
[08-Mar-2007 15:02:23] PHP Warning:  preg_split() [<a href='function.preg-split'>function.preg-split</a>]: Compilation failed: lookbehind assertion is not fixed length at offset 7 in /usr/local/www/roundcube/program/lib/DB/common.php on line 751
[08-Mar-2007 15:02:23] PHP Warning:  Invalid argument supplied for foreach() in /usr/local/www/roundcube/program/lib/DB/common.php on line 756
[08-Mar-2007 15:02:23 +0800] DB Error: DB Error: mismatch Query:  [DB Error: mismatch] in /usr/local/www/roundcube/program/include/rcube_db.inc on line 501
[08-Mar-2007 15:02:23] PHP Fatal error:  Call to a member function fetchRow() on a non-object in /usr/local/www/roundcube/program/include/rcube_db.inc on line 368
[root@mail:/usr/local/www/roundcube/logs]#