I found these entries in the server log:
21-Sep-09 14:26:44,972 |ERROR|LightstreamerLogger.requests |SERVER POOLED THREAD 10 |Bad request: Operation detailed in wrong way
21-Sep-09 14:26:44,973 |ERROR|LightstreamerLogger.connections |SERVER POOLED THREAD 10 |Failure in request processing: Bad request: com.lightstreamer.b.c: Operation detailed in wrong way

What caused these?

Thanks

Eric