When i start the NCM configuration wizard all I get is a quick splash of a progress bar and then an error :

The configurationwizard.log is showing this:
2009-06-16 17:11:06,093 [1] INFO Program - Configuration Wizard Starting.
2009-06-16 17:11:06,281 [1] DEBUG IISHelper - Detecting if IIS6 is installed: True
2009-06-16 17:11:06,312 [1] DEBUG SettingsController - IIS Service is running: True
2009-06-16 17:11:06,500 [1] ERROR Program - System.NullReferenceException: Object reference not set to an instance of an object.
at SolarWinds.ConfigurationWizard.Host.WorkflowController.InitWorkflow()
at SolarWinds.ConfigurationWizard.Host.WorkflowController..ctor(ICirrusConfigHost configHost, Nullable`1 isDatabaseConnectionEncoded)
at SolarWinds.ConfigurationWizard.Host.MainForm..ctor(ICirrusConfigHost configHost, Nullable`1 isDatabaseConnectionEncoded)
at SolarWinds.ConfigurationWizard.Host.Program.Main(String[] args)
CAn someone Help me