[a_c_s]

your backup program has nothing to do with restoring a base ROM... just program files, system data and PIM files...and you should not use this type of program to restore after a ROM flash because you run the risk of copying old system files that could cause conflicts on the new ROM... some programs will let you restore in ROM upgrade mode, which is a better option, but cleanest way to restore is really to use UC or Sashimi, or just do it manually...