[AtomicAcidbath]

[Edit]got it working.

Unusual characters in Member Name causes XML parser error.
(example: Name "??b" prevents the XML package from being accepted)

To fix:

in file /network/functions_network.php find:

            if (!file_exists($workingfile))
            {
                  $xmlstr = "<package networkname='".(strtolower($networkinfo['name']))."'>\n";

Replace:

            if (!file_exists($workingfile))
            {
                  $xmlstr = "<?xml version=\"1.0\" encoding=\"windows-1252\" ?>\n";
                  $xmlstr .= "<package networkname='".(strtolower($networkinfo['name']))."'>\n";