Thanks for your reply.

My PC has a new install of Windows 7 64bit on a 250gb Samsung SSD I also have a 500gb Samsung SSD running ROF, Flightgear, and il2 BAT. WOFF is on my 250gb drive with Windows no other on that drive, I did have the on board Realtec sound when I installed the O/S and after the problem with the Woff sound installed the Asus sound card and for a while all was ok it has just reapeared.

Like I say it is no problem I just pause WOFF and then exit and all is ok, the music is still playing but this go's when I exit.

Hope you can understand I am not to good explaining..