Hi, I was using a RH9 based distribution with Apache 2 (httpd-2.0.40-24) and mysql 3 (mysql-3.23.58-1.9) but decided to upgrade to the latest version of the distribution which is based on Fedora Core 2 (kernel 2.6.9.10). This uses apache 2 (httpd-2.0.51-3.0.cc) and mysql 4 (mysql-server-4.1.8-1.cc). Old perl version was 5.8 and new perl version is 5.8.3 and is located in /usr/bin/perl. Otrs version is 1.31 at the moment but I do not want to upgrade to 1.32 unless that is going to make sense in my current situation. This is th eonly web based application on the box that has failed to work after the upgrade. I have other php based web applications that can access the database without issue, and the websites located on the box are not showing any issues. It is only OTRS that seems to have an issue that results in an apache child process seg faulting. This occurs when I try to access the logon page, either customer or agent and sometimes I dont even get the logon page displaying. When I start the otrs service its checks complete ok although I did have to set OTRS_DB_RUNNING=0 in /etc/sysconfig/otrs. The log shows the connection being authorised when I enter my details into the logon fields but then it just goes to a 404 page. Setting apaches log level to debug does not seem to produce any more information. Having looked through this thread "Segmentation fault (Apache 1.3 & 2) when trying to login to OTRS" on the mailing list which appears to be very similar, but I dont get any further by following its suggestions. I do not get any error message when starting via apachectl. Perl:DBI is perl-DBI-1.40-4. Can anyone give me a direction to follow as I am at a loss. regards Des Quinn