Data Size issue

I've got a Web Service running on PEAR::SOAP that is returning data for a reporting tool. When I run one of my reports to return data over a 4 day span I get 798 rows of data returned and everything works just fine. When I add a single day to this my result set ends up being 1035 (querying the database directly for this numer) but I don't get any response from my Web Service other than: Invalid HTTP Response. My question is, what could be causing this I'm almost positive that I'm not running over PHP's 8Meg memory limit, I've even upped this to be certain. The data itself for my 2 runs only amounts to 32k & 41k respectively, and adding in the SOAP envelope ups these numbers by just a little less than 10x (i.e. 3.2Meg & 4.1Meg). Has anyone run into an issue like this, and if so what did you do to fix it. Or what else can I do to try to determine where the problem lies. Attached below is my wire for anyone who's interested. Thanks, Rob OUTGOING: POST /IWS/Reporting/ HTTP/1.0 User-Agent: PEAR-SOAP 0.7.3-devel Host: cpitts-lnx.indyme.local Content-Type: text/xml; charset=UTF-8 Content-Length: 1395 SOAPAction: "" <?xml version="1.0" encoding="UTF-8"?> <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns4="urn:Reporting" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> <SOAP-ENV:Body> <ns4:GetReportData> <LoginKey xsi:type="xsd:string">0a30d5763696e04de883d1c3f4fdee90</LoginKey> <nodeID xsi:type="xsd:int">3</nodeID> <reportDef> <ReportID xsi:type="xsd:int">2</ReportID> <Title xsi:type="xsd:string">Traffic Counter Weekly Store</Title> <ReportVariableList xsi:type="SOAP-ENC:Array" SOAP-ENC:arrayType="Struct[2]" SOAP-ENC:offset="[0]"> <item> <ReportID xsi:type="xsd:int">2</ReportID> <ReportVariableID xsi:type="xsd:int">4</ReportVariableID> <Name xsi:type="xsd:string">startdate</Name> <Value xsi:type="xsd:int">1057042800</Value> <CanUserModify xsi:type="xsd:boolean">false</CanUserModify></item> <item> <ReportID xsi:type="xsd:int">2</ReportID> <ReportVariableID xsi:type="xsd:int">4</ReportVariableID> <Name xsi:type="xsd:string">enddate</Name> <Value xsi:type="xsd:int">1057388400</Value> <CanUserModify xsi:type="xsd:boolean">false</CanUserModify></item></ReportVariableList></re portDef></ns4:GetReportData> </SOAP-ENV:Body> </SOAP-ENV:Envelope> INCOMING object(soap_fault)(8) { ["error_message_prefix"]=> string(0) "" ["mode"]=> int(1) ["level"]=> int(1024) ["code"]=> string(4) "HTTP" ["message"]=> string(21) "Invalid HTTP Response" ["userinfo"]=> string(0) "" ["backtrace"]=> NULL ["callback"]=> NULL }