[Laszlo-user] "client could not parse XML from server" on sequential dataset.doRequest in SWF8

[m . laszlo-user]

I am using a remote PHP script dataset and doing POST queries to write data out.  Compiling to SWF8, the data POST is successful, but I get "client could not parse XML from server" error on all requests after the initial one.  No such error building to SWF9 or 10.  Example code follows:     <dataset name="ds1" src="" class="moz-txt-link-rfc2396E" href="http://www.thepage.com/thescript.php">"http://www.thepage.com/thescript.php" querytype="POST" request="false" />     <method name="dswrite" >         var dset = canvas.datasets.ds1         var params = new lz.Param();         params.addValue( "text", "some text" );         params.addValue( "number", "10" );         dset.setQueryString( params );         dset.doRequest();         var error = dset.getErrorString();         if( error )             Debug.write( "error: " + error );     </method> What is this error telling me?  ("client could not parse XML from server")   Is it of any concern, or just disregard?