problem with php and unixODBC

Hello, my unixODBC-2.2.2 installation works fine. I tested the configuration with a local and a remote ressource to a Sybase Adaptive Server Anywhere database with isql (a testing tool of unixODBC). Thus the settings in the odbc.ini and odbcinst.ini should be correct. But when I'm using PHP-4.2.1 with unixODBC-support, I can connect to the local ressource only, not to the remote-ressource, although it worked with isql. Do you have any general ideas, why it doesn't work? Are there known issues about the unixODBC-implementation in php? PHP always says "unable to connect to server: database not found". But as I told before, the odbc.ini settings are correct. It seems that php tries to connect to a local server although in odbc.ini CommLinks-settings are defined. Does maybe php don't receive the odbc.ini data correct? I thought that it might be a permission problem, but I ran apache 1.3.26 (with php as module) with the same user to whom all the files and databases belong and I got no positive result. Regards Marten Lehmann