I am using Acronis, and have NO PROBLEMS ON ANY VERSION OF WINDOWS 7.
So either you have a problem because it is TRIAL, or you DL version is corrupt, or a program you have installed is causing the problem.
Acronis is not the PROBLEM.
Acronis.True.Image.Home.2009.v184.108.40.20670 = 100% solid
CoreDiskDirectorSuite.10.2160 = 100% solid
working perfect 100% of the time. no failures