5.1.0.CR1 gui demo is broken

I am not sure if this is the right place to post this, and just want to you gouys know that the GUI demo in 5.1.0.CR1 is broken.

The configureation files might be outdated.

In paritcular, whe I run with "./runGuiDemo.sh config-samples/relay1.xml", it gives me the following errors:

Caused by: java.lang.reflect.InvocationTargetException

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:601)

at org.infinispan.util.ReflectionUtil.invokeAccessibly(ReflectionUtil.java:203)

... 12 more

Caused by: org.infinispan.CacheException: java.lang.IllegalArgumentException: the following properties in pbcast.NAKACK are not recognized:

at org.infinispan.remoting.transport.jgroups.JGroupsTransport.buildChannel(JGroupsTransport.java:306)

at org.infinispan.remoting.transport.jgroups.JGroupsTransport.initChannel(JGroupsTransport.java:238)

at org.infinispan.remoting.transport.jgroups.JGroupsTransport.initChannelAndRPCDispatcher(JGroupsTransport.java:266)

at org.infinispan.remoting.transport.jgroups.JGroupsTransport.start(JGroupsTransport.java:156)

... 17 more