[Lloyd Te Kani]

Thanks for the advice guys but I make sure I back up Hoster on an external hard drive, I did this right from the start because this is what I do for a living and yes it is bith audio and video that fail. What happens is the program simply stops operating. All I see on the screen is the blank outline of the Hoster screen and the error message "Hoster has stopped" or something equally simple. I click on the OK button and the whole thing reverts back to the desk top.

My laptop has a fault diagnosis program which comes up with the inital diagnosis as specified.

I know, it's a curly one. I've submitted a query to MTU tech to see what they can tell me.