i did have squrillelmail installed before roundqube.
is this file correct?
AddType application/x-httpd-suphp .php .php3 .php4 .php5 .phtml
# By default, disable suPHP for debian packaged web applications as files
# are owned by root and cannot be executed by suPHP because of min_uid.
# # Use a specific php config file (a dir which contains a php.ini file)
# suPHP_ConfigPath /etc/php4/cgi/suphp/
# # Tells mod_suphp NOT to handle requests with the type <mime-type>.
# suPHP_RemoveHandler <mime-type>