This is not so much a problem as something I am curious about. I just bought and installed a 160 GB Seagate Sata drive for backups etc and Acronis informed me it was a dynamic disk and unsupported. I'm wandering what a dynamic disk is and how it differs from my other disks which are not dynamic and wether what makes it dynamic is the physical way it is built and operates or simply the way I've installed the disk. To install it I put it in an external hard drive case and connected it to the computer through a bracket that came with my Asus P4C800 motherboard. Since it connects to the motherboard using a Sata data cable and molex power cable the external drive is super fast running at the same speed as the internal drives for data transfers etc but is portable and can be turned off when I don’t need it (I just wish they made longer Molex connectors for this as hooking up a series of Molex connectors to connect the external drive case to the bracket at the back of the computer isn't very pretty). Lastly I know Acronis will not restore an image to a dynamic disk but will it restore an image from a dynamic disk to a disk that is not dynamic?