Roundcube package can't open HTML emails
Hi. I've been grinding on this for many, many hours. I'm a former 42Go admin, and I've just done a fresh ispconfig build / roundcube package install on Ubuntu 8.04 (using the perfect setup). Everything seems to be working fine, except I can't open HTML emails! I get a http 500. Below is the error message out of roundcube/log/error. If anyone can provide some help/direction I'd greatly appreciate it...pulling my hair out here.
[16-Aug-2008 22:41:55] PHP Warning: include_once(DOMDocument.php) [<a href='function.include-once'>function.include-once</a>]: failed to open stream: No such file or directory in /home/admispconfig/ispconfig/web/roundcubemail/program/include/iniset.php on line 80
[16-Aug-2008 22:41:55] PHP Warning: include_once() [<a href='function.include'>function.include</a>]: Failed opening 'DOMDocument.php' for inclusion (include_path='/home/admispconfig/ispconfig/web/roundcubemail/:/home/admispconfig/ispconfig/web/roundcubemail/program:/home/admispconfig/ispconfig/web/roundcubemail/program/lib:/home/admispconfig/ispconfig/web/roundcubemail/program/include:.:/usr/share/php:/root/ispconfig/php/include') in /home/admispconfig/ispconfig/web/roundcubemail/program/include/iniset.php on line 80
[16-Aug-2008 22:41:55] PHP Fatal error: Class 'DOMDocument' not found in /home/admispconfig/ispconfig/web/roundcubemail/program/lib/washtml.php on line 188