Jim, Thanks. I had already asked support for help, so I'll have to wait n see what they say. I didn't look within any compressed files on the usb disk, so that would explain why I couldn't find it - assuming it is there. However, the fact that there is no folder in \bb\data on the usb drive implies either that any folk running the program from the drive would not have the facility of realtrack videos or that my usb drive was missing files. Poldav