EbAB0013 Error

I recently replaced my C: drive and upgraded to windows 7 64-bit.  I reinstalled NG15, did the updates.  I reformatted my backup drive and did an initial backup on all (C:, D:, & E: all separate drives) dirves.  The intial backup worked fine as have manually initiated incremental backups for D: & E:.  However, I have not been able to back up C: since,  I get the EBAB0013 error (see attachment). 

 Also, the D: & E: backups don't work as scheduled.  Message in Log is "Error EC8F17D4: Cannot update the job, "My Computer Backup", from a previous version. Please edit the job and reselect the source drives.  Error EC8F1FA7: None of the source drives are currently available.