PEAR XML-RPC incompatible with Apache Java xmlrpc?

Hi, PEAR XML-RPC doesn't seem to work with the Java Apache xmlrpc package. I have PHP as the server and Java as the client. The client works with many different xmlrpc implementations (also on PHP), but throws a parser error with the PEAR xmlrpc class: "Fatal error parsing XML: org.xml.sax.SAXParseException: expected Element". Somehow, it can't read the response correctly. I already checked if a XML response gets generated by PEAR, and it does. Java just doesn't seem to understand it, altough it looks right. I already fixed the "missing newline" bug in my PEAR source, so the method name can be found by PHP. But thats as far as I can get, it's still not working. So, is there anything known about this incompatibility? Any adivice/fixes etc? I tried the original useful inc. version, tried WinXP and Linux as host, PHP 4 and 5, to no success. Or could anyone recommend a alternative PHP class? There aren't that many quality xmlrpc libs for PHP out there, it seems... Thanks a lot, Michael Böckling