i have another Problem. I made a nagvis map and wanted to implement some machine states. It seems that some messages from services are too long. In the hovermenu of the machine it tells me: "Windows System Events: CRITICAL: null". It looks normal on the Host (it is critical, but has more text ;)).
And an error appers on the screen: "PHP error in ajax request handler: Error: (2) json_encode(): Inavlid UTF-8 sequence in argument (/usr/local/nagios/nagvis/nagvis/ajax_handler.php:171)". Is there a way to change the encoding or something?