Fault Problems

I have this code that kicks out a soap fault: return = new SOAP_Fault('Invalid login', 'Client', 'urn:Permissions', 1); I have 2 servers that have, as far as I can tell, identical setups. The only differences are in the locations of the files. On both servers when I don't trigger the fault everything runs fine but when I trigger the faule on machine 1 I get back my expected fault, but on machine 2 it looks like I get back a stack trace. Has anyone run into this? Is there some setting that may be different between the 2 machines setups? When this fault is triggered on machine 1 I get back this object: object(soap_fault)(8) { ["error_message_prefix"]=> string(15) "urn:Permissions" ["mode"]=> int(1) ["level"]=> int(1024) ["code"]=> string(15) "SOAP-ENV:Client" ["message"]=> string(13) "Invalid login" ["userinfo"]=> string(1) "1" ["backtrace"]=> NULL ["callback"]=> NULL } However on machine 2 I get this object back: object(soap_fault)(8) { ["error_message_prefix"]=> string(15) "urn:Permissions" ["mode"]=> int(1) ["level"]=> int(1024) ["code"]=> string(15) "SOAP-ENV:Client" ["message"]=> string(13) "Invalid login" ["userinfo"]=> array(7) { [0]=> &object(stdClass)(6) { ["file"]=> string(33) "/usr/local/lib/php/SOAP/Fault.php" ["line"]=> int(49) ["function"]=> string(10) "pear_error" ["class"]=> string(10) "pear_error" ["type"]=> string(2) "::" ["args"]=> array(5) { [0]=> string(13) "Invalid login" [1]=> string(6) "Client" [2]=> string(0) "" [3]=> string(0) "" [4]=> string(1) "1" } } [1]=> &object(stdClass)(6) { ["file"]=> string(89) "/usr/local/apache/htdocs/QA/user1/WebServices/Services/Permissions/Permissi onsService.php" ["line"]=> int(83) ["function"]=> string(10) "soap_fault" ["class"]=> string(10) "soap_fault" ["type"]=> string(2) "->" ["args"]=> array(4) { [0]=> string(13) "Invalid login" [1]=> string(6) "Client" [2]=> string(15) "urn:Permissions" [3]=> string(1) "1" } } [2]=> &object(stdClass)(4) { ["function"]=> string(5) "login" ["class"]=> string(18) "permissionsservice" ["type"]=> string(2) "->" ["args"]=> array(3) { [0]=> string(0) "" [1]=> string(0) "" [2]=> string(4) "fred" } } [3]=> &object(stdClass)(4) { ["file"]=> string(34) "/usr/local/lib/php/SOAP/Server.php" ["line"]=> int(231) ["function"]=> string(20) "call_user_func_array" ["args"]=> array(2) { [0]=> array(2) { [0]=> object(stdClass)(10) { ["user"]=> string(0) "" ["dist"]=> string(0) "" ["globalDB"]=> &object(stdClass)(7) { ["dbConn"]=> string(15) "Resource id #37" ["database"]=> string(6) "Global" ["fieldCount"]=> int(1) ["debug"]=> int(0) ["lastInsertID"]=> string(0) "" ["error"]=> bool(false) ["errStr"]=> string(0) "" } ["clientDB"]=> string(0) "" ["serviceUser"]=> string(11) "Permissions" ["servicePass"]=> string(10) "-deleted-" ["namespace"]=> string(15) "urn:Permissions" ["discoNamespace"]=> string(11) "Permissions" ["errStr"]=> string(0) "" ["errObj"]=> string(0) "" } [1]=> string(5) "Login" } [1]=> &object(stdClass)(3) { ["UserName"]=> string(0) "" ["Password"]=> string(0) "" ["Chain"]=> string(4) "fred" } } } [4]=> &object(stdClass)(6) { ["file"]=> string(34) "/usr/local/lib/php/SOAP/Server.php" ["line"]=> int(390) ["function"]=> string(10) "callmethod" ["class"]=> string(11) "soap_server" ["type"]=> string(2) "->" ["args"]=> array(2) { [0]=> string(5) "Login" [1]=> &object(stdClass)(3) { ["UserName"]=> string(0) "" ["Password"]=> string(0) "" ["Chain"]=> string(4) "fred" } } } [5]=> &object(stdClass)(6) { ["file"]=> string(34) "/usr/local/lib/php/SOAP/Server.php" ["line"]=> int(170) ["function"]=> string(12) "parserequest" ["class"]=> string(11) "soap_server" ["type"]=> string(2) "->" ["args"]=> array(2) { [0]=> string(587) " fred " [1]=> string(0) "" } } [6]=> &object(stdClass)(6) { ["file"]=> string(76) "/usr/local/apache/htdocs/QA/user1/WebServices/Services/Permissions/index.ph p" ["line"]=> int(12) ["function"]=> string(7) "service" ["class"]=> string(11) "soap_server" ["type"]=> string(2) "->" ["args"]=> array(1) { [0]=> string(587) " fred " } } } ["backtrace"]=> NULL ["callback"]=> NULL }