Hi, all, I met very strange problem, regarding to apache or maybe some modules in apache. My envirnaments: Linux 2.6.23.9-85.fc8 SMP x86_64 httpd: httpd-2.2.6-3.x86_64 php: php-5.2.4-3 cacti: cacti-0.8.7a-1.fc8 phpMyAdmin: phpMyAdmin-2.11.3-1.fc8 When I use phpMyAdmin to operate mysql without any problem, but when I install cacti, enter http://localhost/cacti/, then I got these error log: [Mon Jan 14 21:57:13 2008] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec) [Mon Jan 14 21:57:13 2008] [notice] Digest: generating secret for digest authentication ... [Mon Jan 14 21:57:13 2008] [notice] Digest: done [Mon Jan 14 21:57:13 2008] [notice] Apache/2.2.6 (Unix) DAV/2 PHP/5.2.4 configured -- resuming normal operations [Mon Jan 14 21:57:31 2008] [notice] child pid 4302 exit signal Segmentation fault (11) most problem is [Mon Jan 14 21:57:31 2008] [notice] child pid 4302 exit signal Segmentation fault (11), then nothing showed on the web client, for instance, mozilla. apache accesslog: [14/Jan/2008:22:25:48 +0800] "GET /cacti HTTP/1.1" 301 315 "-" "Mozilla/5.0 Anyone have any tips, thanks in advance Zhou Zhen