acronis backup & revocery 11 to run machine virtual this restart

good morning;

with

acronis backup & revery 10:
virtual machine:
windows 7 in
Microsoft virtual PC
result: ok

the same machine with acronis backup and recovery 11
result: off
when run machine windows 7 virtual, It restarts when show the logo windows.

thanks very much,

pdt: Sorry my english ;-)