Some Hard Drives Are Missing From "hard Drives" View

Hi,
Newbie to WHS2011 so apologies for a stupid question...

I have recently installed WHS2011 with the following drives

Drive C 300 Gbyte but WHS has split it into 1x 60 Gbyte ( Drive C) and 1 x 240 GByte ( Drive J)

Drive D unamed 1 Tbyte drive

Drive E "Music" 1 Tbyte drive

Drive F unamed 1 Tbyte drive

Drive G unamed 1 Tbyte drive

Drive H "Photographs" 1 Tbyte drive

Drive I "Multimedia" 1.3 Tbyte drive

Drive M "Elements" 2 Tbyte drive - External USB drive

All of the above appear in Windows explorer when I open "my computer"

When I look at the dashboard under the Hard Drive section of Server Folders and Hard Drives only the following disks appear

Drives C, E, D, F, I J, M, i.e only "photographs (Drive H) is missing. It doesn't appear in the storage part of the server manager either.

When I open photographs under my computer I can browse the files add content between drives etc. Problem is that if I cant see it in the dashboard I cant back it up in the normal way

Any ideas would be appreciated

Regards