Sometimes when Helm V4 updates it loses synchronisation with the control server...i.e. it breaks.  To fix it:

1. Stop all the services (either through Helm Control Panel or Services)

2. Delete the file c:\program files\webhostautomation\helm4\controlpanel\controlserver.config.xml

3. Restart the services

4. Log into Helm 4 control panel, go into Diagnostics and click check (then refresh if still not synch'd)