ntfs is grayed out in Create New Partition

Hi
I just placed a new HD "hdc" and wanted to create a ntfs partition. but this option is grayed out in the drop down manu.

here is my current fdisk -lu

many thanks

fred@debian:~$ sudo fdisk -ul

Disk /dev/hda: 9115 MB, 9115361280 bytes
16 heads, 63 sectors/track, 17662 cylinders, total 17803440 sectors
Units = sectors of 1 * 512 = 512 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *          63     8192015     4095976+   7  HPFS/NTFS
/dev/hda2         8193150     8401994      104422+  83  Linux
Partition 2 does not end on cylinder boundary.
/dev/hda3         8401995    17800019     4699012+  8e  Linux LVM
Partition 3 does not end on cylinder boundary.

Disk /dev/hdb: 20.5 GB, 20576747520 bytes
255 heads, 63 sectors/track, 2501 cylinders, total 40188960 sectors
Units = sectors of 1 * 512 = 512 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hdb1   *          63      546209      273073+  83  Linux
/dev/hdb2          546210    40178564    19816177+   f  W95 Ext'd (LBA)
/dev/hdb5          546273    10313729     4883728+  83  Linux
/dev/hdb6        10313793    16177454     2931831   83  Linux
/dev/hdb7        16177518    19117349     1469916   82  Linux swap / Solaris
/dev/hdb8        19117413    19904534      393561   83  Linux
/dev/hdb9        19904598    40178564    10136983+  83  Linux

Disk /dev/hdc: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders, total 78165360 sectors
Units = sectors of 1 * 512 = 512 bytes

   Device Boot      Start         End      Blocks   Id  System
fred@debian:~$