Cannot pickup Disks\Luns in Device Manager

Hi,

We've recently re-installed to Windows Server 2008 R2, and wanted to assign Storage to our server.

HBA we're using is a Qlogic which came with SANSurfer, however upon assigning the luns. The luns are not visible within device manager or disk management. When we take a look in SANSurfer the connections (storage array controllers) to the LUNs are visible there but not the disk arrays.

Anyone come across this before?

Thanks