I think I have done something very silly. Fiddling about last night, I went into the "back-up" part of the menu and highlighted factory settings and pressed ok. The processor immediately switched off and will not switch back on. All it does is display "system check" and then switches off. No error message is displayed. Have I wiped the programme off the flash memory? The version was 3.4 and it was my intention to upgrade to 3.8 to get the greater range of lip-sync adjustment. The next query is the update cable for the computer. Does anybody have one available for sale/rent? Would this be the same cable that is used for the Audiolab 8000AV? I will give the Helpdesk a call this morning, but any info just now would be most welcome.