Acronis TI 2011 Home Plus Pack, Disk read error ocurred, CTRL+ALT+DEL to restart

Hello to the forum members,

after a clean install of Acronis True Image 2011 Home with Plus Pack the Operating System Windows XP Professional runs normally. When i run a image of the full system volume (C:) and do a restart, in many cases the Boot Loader say: "A Disk read error ocurred, CTRL+ALT+DEL to restart".
Then i only can run the recovery and the system boot normally.
There is no other way to boot the operating system. (no way with fixmbr, fixboot, bootcfg /rebuild)

What does Acronis TI 2011 change on back up the system volume?

Many thanks for help.

janapp