%3aThere is no more space in the partition table to save a record of this DOS partition.%1a
You must BACK UP ALL your disk partitions, including non-DOS partitions. Then start NDD with the /REBUILD switch, which tells Disk Doctor to remove all of the current partitions and to rebuild the disk from scratch.
%3aYou MUST back up all partitions if you decide to do this. All data in the partitions will be lost!