On Friday my switchboard started giving off this error message. Since then I have just directed our main line to a hunt group. I notice now though that voicmails also get the same error message. Some info about our setup... Windows 2008 part of a domain Latest 3CX release Software firewall disabled Using inbuilt HTTP not IIS Nothing on Friday changed although I do beleive there was a power cut on the Thursday evening. Im not sure if this is the cause or possibly a windows update too. Either way I cannot at all figure this out. I have tried looking at http://www.3cx.com/forums/an-error-occured-in-ivr-session-8959.html but this doesn't really help. There is one odd thing. If I goto the voiceprompts and attempt to Play a file I am presented with a Save As dialog box. This could be due to me viewing the 3CX managing interface via Remote Desktop?