Cannot create a new primary partition

Hi guys, I have Acronis Disk Director Suite 10.0 and try to create a new 8GB primary NTFS partition from my another 30GB partition. But I cannot create it, my 30GB partition have 16.6GB free, but in Acronis Disk Director it shows up the drive is full, and I am unable create a new partition. How can I fix this?

MY computer spec:
Compaq Presario SR1103WM
MSI MS-6577 v4.1 motherboard
Intel celeron D 2.54GHZ
512MB RAM

pictures:
http://img90.imageshack.us/img90/3623/freeinwindowsoy0.jpg
I have 16.6GB free space

http://img160.imageshack.us/img160/610/fullinacrvx2.jpg
But it show up full in Acronis Disk Director Suite

http://img295.imageshack.us/img295/5075/trytocreatekk2.jpg
I try to create a new partition using another partition's free space.

http://img401.imageshack.us/img401/306/cantzt7.jpg
But I can't beause it show up 0 frees space.

Help guys please!!!!

 

If you are using the automatic wizard, try using the manual option.


Colin

 

I might be wrong,but I wasnt aware that you could create a new partition from within Windows, I thought you had to do this from pre-installation of Windows + Compaq Presario is an OEM Computer,and resizing the primary partition may not work. This is only from my own experience of creating a seperate partition on my own computer, for data storage only, I could not create a partition from within windows, I had to reformat and create a extended partition with the size of my choice.