Problem in data acquisition

I am trying to acquire some analog data using NI PXI-5154. I have tried to use Instrument Control Toolbox. I have completed following steps: >> demo toolbox 'instrument control' >> instrinfo = instrhwinfo >> serialinfo = instrhwinfo('serial') >> serialinfo.ObjectConstuctorName

upto this step the result is as shown in help section of Instrument control tool box

>> gpibinfo = instrhwinfo('gpib','ni')

after this step it displays

AdaptorDllName: 'C:\Program Files\.......'\

AdaptorDllversion: 'Version 2.10.0'

AdaptorName: 'ni'

InstalledBoardIds: []

ObjectConstructorName: {}

VendorDllName: 'gpib-32.dll'

VendorDriverDescription: 'NI-488'

In InstalledBoardIds and ObjectConstructorName the matrix seems to be empty. Can you suggest me what can be the possible errors.