I have two sets of data files one of which is 650MB and the other 15MB with backups stored on an 8GB flash drive of which 6.5GB is shown as free space. Nevertheless both these data sets, for Outlook and Money respectively, refuse to backup stating that the backup destination is full. The Money problem has existed for several months, but the Outlook problem has just now appeared. Other data sets can be backed up onto the flash drive without problems. Any suggestions?