Logged In: NO

I realized the same problem but the server was on an iBook g3 with 10.3.9 and the client on a PB G4 with 10.4.8
same log
Determining Screen Resolution.+
Display Resolution: 0,0:1024x768
listening on port 5500
Positioning client 0: 0, 0
RFB server supports protocol version 3.30
Exception in thread "Thread-2" java.lang.OutOfMemoryError: Java heap space
Positioning client 1: 512, 0
RFB server supports protocol version 3.30

Andrea G.