Missing array element in SOAP response object

Hi, I have send this question three times without getting any response. The previous subject was '[PEAR] Missing element in SOAP response object'. Now I resend it and any help is appreciated! I have a PEAR:SOAP client to call a SOAP sever to get an object which suppose to contain two array of objects. But I just got the first array right. The second array becomes the object which is the last element of the second array. However, in the trace information, I did see two arrays being returned in xml format which means PEAR:SOAP did not parse this xml response correctly. Is this a known bug and how to go around it? Thanks. Song