ODBC under linux + PHP + Apache problem.

I write a few days ago to the list with a problem trying to find my ODBC DSN under linux debian. Well, i solve the problem, now i can find my dsn from PHP code, but its seems like it crash when i do a odbc_connect(...) I know that unixodbc works becouse i test it with isql. I have no warnings trying to find DSN, but now nothing happens. I suppose that it finds dsn but there is another error somewhere. But there is no logs, there is no output in the browser... i dont know what to do, i have no information to try to resolve the error. somebody can help me? this is the reply from the browser; The following error was encountered: Zero Sized Reply Squid did not receive any data for this request. this is my code: <html>^M <title>REGISTRO DE LLAMADAS</title>^M <body >^M <?php putenv("ODBCINSTINI=/etc/odbcinst.ini"); putenv("ODBCINI=/etc/odbc.ini"); if(!extension_loaded('odbc')) { if(!dl("odbc.so")){ exit; } } echo "dl odbc loaded ok<br>"; $cx=odbc_pconnect("cdr2","mylogin","mypasswd",""); echo "connected"; ?> </body> </html> thanks in advance!