Resizing partitions failed, boot partition lost

Hi,
i am using Disk Director 11.0.0.216 and True Image 11.0.08105 On Windows 7 X64.
On starting a partition resize task, Disk Director complained about a faulty partition and quit the job. I shut down the programm and checked the drive with windows disk management where everything seems to be ok.
Next day the system could not be bootet. I successfully restored the bootpartition with True Image with a backup i had created just before starting Disk Director the day before.

Is there a solution for this?