The first step to make sure your switch is working is to make sure you have all the current software. Do you still have the Software CD that came with the PXI-2565, or are you downloading the individual software from the web?
If you are installing from the web make sure that you have the latest software:
NIDAQ 6.9.0 (or later)
NI-VISA 2.5.2 (or later)
IVI Engine 1.6.1 (or later)
CVI Run-Time Engine 5.1.0 (for the NI-Switch Soft Front Panel)
NI-Switch 1.6 (or later)
If you have these installed and you are still having problems uninstall NI-VISA and NI-Switch and reinstalling
NI-VISA and
NI-Switch. NI-VISA is the main protocol for communicating with the switch.
Make sure you see the instrument in Measurement and Automation Explorer (MAX). Make sure you refresh the configuration. It should appear under Devices and Interfaces under the PXI System folder.
If MAX and Switch Soft Front Panel doesn't see the switch then if possible try the switch in another chassis.
If all of these steps fail contact National Instruments to start the Return Merchandise Authorization.
www.ni.com/ask