IBM has discovered a problem with the Backup Utility , which is part of the Corrective Service Diskette (UR35834) released in November. Under some conditions, the backup utility fails to save all the data when copying files from the hardfile to diskette. If you have installed CSD UR35834, it is recommended that you not use the backup utility. If you still have the original backup utility released with DOS 5.0, you should install that version on your system. Otherwise, the original backup utility will be available on the this Bulletin Board System by virtue of file download. You may also obtain the previous level backup from your nearest branch office. The latest CSD available from IBM will be 35748, released October 1991. This CSD can be obtained by downloading from this Bulletin Board System, from your authorized dealer, IBM branch office, or by contacting the IBM Support Center.