Did you check the partition scheme of the drive? Some schemes don't like large address sizes.
Try this:
1) Open DU
2) Click on the Drive (not one of the partitions)
3) Change teh Partition Layout to: 1 Partition (yes ONE)
4) Set the 'Name' to whatever you want (it's temporary)
5) Set the format to 'mac OS Extended (Journalled)
6) Click 'Apply' & Wait for it to finish
7) EXIT DU <-- non standard but try it anyway
8) Fire up DU again <-- non standard but try it anyway
9) Click and highlight the drive again (not the partition)
10) Switch to the 'Partitionn Tab'
11) Change the Parition Layout to '4 Parititons'
12) Keep the default layout (i.e. whatever sizes it creates them, usually equal i.e. 4 x 1TB)
13) Name them all for example 'Mackintosh HD 1', 'Mackintosh HD2' etc...
14) Set ALL of the Formats to be 'Mac OS Extended (Journalled)
15) Click Apply and wait for the magic to happen
16) EXIT DU <-- non standard but try it anyway
17) Fire up DU again <-- non standard but try it anyway
18) Click on the drive again
19) CLick on the 'Partition' tab
20) Resize accordingly to the sizes you want
21) Click 'Apply'
Does that work?
If so, you can rename the volumes by just firing up finder, rightclicking on the, clik on 'Get Info' and rename them in there.
I know I mentioned a few non standard things there, i.e. keep exiting DU etc... but due to the nature and size of the drive, it's probably worth a shot in the dark.