Retrospect will not sync files and copy data properely even when configured properely, try the following

• make more free space on the drive i want to back up ie. D: drive
• delete the configuration file and resetup
• turn of damon tools, reg mechanic , antivirus and other stuff like that
• reinstall might help
• leave for ages

Also See Understanding the Retrospect HD Restore Log [193431]

Log Location

Vista / Windows 7 - C:\ProgramData\RetroExp\operations_log.utx