Debug problem

Hi,

I'm running ColdfusionMX on a RH3.

Here a tail of the file cfserver.log
02/09 17:40:00 error The Debugging service is not available.
coldfusion.server.ServiceFactory$ServiceNotAvailableException: The Debugging service is not available.
at coldfusion.server.ServiceFactory.getDebuggingService(ServiceFactory.java:98)
at coldfusion.CfmServlet.getFilterChain(CfmServlet.java:72)
at coldfusion.CfmServlet.service(CfmServlet.java:101)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:249)
at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:527)
at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:192)
at jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:318)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:426)
at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:264)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

02/09 17:40:00 error Exception occurred invoking custom error page /WEB-INF/exception/java/lang/Exception.cfm
coldfusion.server.ServiceFactory$ServiceNotAvailableException: The Debugging service is not available.
at coldfusion.server.ServiceFactory.getDebuggingService(ServiceFactory.java:98)
at coldfusion.CfmServlet.getFilterChain(CfmServlet.java:72)
at coldfusion.CfmServlet.service(CfmServlet.java:101)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at jrun.servlet.JRunRequestDispatcher.invokeNext(JRunRequestDispatcher.java:447)
at jrun.servlet.JRunRequestDispatcher.forwardInvoke(JRunRequestDispatcher.java:417)
at jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:175)
at jrun.servlet.JRunResponse.sendErrorPage(JRunResponse.java:676)
at jrun.servlet.JRunResponse.sendError(JRunResponse.java:515)
at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:291)
at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:527)
at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:192)
at jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:318)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:426)
at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:264)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

Here a tail of server.log
"Error","main","09/02/08","17:20:59",,"[/opt/coldfusionmx/lib/neo-debug.xml]coldfusion.wddx.WddxDeserializationException: WDDX packet parse error at line 13, column -1. Expected ""</data>"" to terminate element starting on line 1.."

i realized that the file /opt/coldfusionmx/lib/neo-debug.xml is empty. I don't know if this is normal.

When i try to access a web page, i get this:
JRun Servlet Error
500 The Debugging service is not available

Could you help me about this ?

Thanks
Tadeu Granemann