I was just going to provide some additional info, mainly regarding b), but to answer in order: a) FF 3.0.8 with Firebug 1.3.3 (will try without firebug tonight) b) Initially none, but patient as I am, I left it open and after 5 minutes of 100% cpu (one cpu lucky I have two :-) so I did not notice it) this error occured: anonymous wrote : | [ERROR] [ERROR] Failed to load remote data | com.gwtext.client.data.StoreLoadException: [object Object] | at com.gwtext.client.data.Store.createStoreLoadException(Store.java:907) | 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:616) | at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) | at com.google.gwt.dev.shell.moz.MethodDispatch.invoke(MethodDispatch.java:80) | at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method) | at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:1428) | at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2840) | at com.google.gwt.dev.GWTShell.pumpEventLoop(GWTShell.java:720) | at com.google.gwt.dev.GWTShell.run(GWTShell.java:593) | at com.google.gwt.dev.GWTShell.main(GWTShell.java:357) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4226016#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...