Can you try uninstalling it and then re-installing it with the latest release (if it's on the same PC as Nexus itself then they MUST be exactly the same version).
If still no joy, can you run the .exe with /debug on the command line, raise a support ticket with us and then send us a support file which should include the debug files?
Peter Jarrett, Technical Director
Broadcast Radio Ltd.
Bill Bailey: No win, no fee, no basis in reality. Just a room above a minicab office in Acton and a steady stream of greedy simpletons whose delusion is only matched by their clumsiness