Right click My Computer and choose Manage. Expand services and Applications and select Services. There should be listed a service named V2i Protector. Is so stop it and try Ghost again. It should run and restart the service as it does so. You may need to do this every time you run Ghost, unless you want the dubious pleasures of debugging it. It should sort itself out after a while, these glitches are often temporary.
This was the way I cured the problem on a machine running DriveImage, which is now Ghost.