There's many IE CSS extensions in mail.css.
There's CSS typos or something like that
line 535 to 537: html>body*#quicksearchbar { background-image: none; } html>body*#quicksearchbar a { top: 5px; } html>body*#quicksearchbar #quicksearchbox { width: 180px; top:0px; right: 1px; left: auto; }
Firefox complains : Expected ',' or '{' but found '*'. Ruleset ignored due to bad selector.
And there's a missing | and the end of a line.
I got this line hphp[10174]: ALERT - canary mismatch on erealloc() - heap overflow detected (attacker '212.234.8.113', file '/var/www/roundcubemail-0.1beta2/program/lib/DB/mysql.php', line 798)
I run PHP 5.1.4 and MySQL 5.0.24 which are the latest versions available for my Gentoo.