Hello, we have got a problem with the module php4_unixODBC. There is an error logged in the file /var/log/apache2/error_log: "usr/sbin/httpd2-prefork: error while loading shared libraries: /usr/lib/php/extensions/unixODBC.so: undefined symbol: SQLAllocEnv " Our system ist an 2.6 Linux server based on the SuSE distribution. Apache2 (2.0.49) , php4 (4.3.4), php-unixODBC (4.3.4), unixODBC (2.2.8) and unixODBC-devel (2.2.8) were installed with the admin software yast2. I am pretty sure, that the unixODBC connection ist functional because the command isql -v "ts_dsn" successfully connects to the database server (sybase ASA). The error shown above is logged everytime an "odbc_connection" ist called in php. This is our testfile: <? echo "Begin"; $conn=odbc_connect("ts_dsn","xxx","yyy") or die ("Failure"); echo "End"; ?> This problem was already mensioned in February by Ulrich Stärk and Sven Haberer, but I cannot find any solutions. Have you got an idea, what can be done to solve the problem? Best regards Jens