Eddie,
Thanks for contacting National Instruments.
I am sorry to hear you are having trouble installing your PCI-GPIB card. I found a document on our website which details troubleshooting steps for the situation you described:
Grayed Out Serial Numbers for PCI-GPIB Boards under Windows NTI hope this helps you resolve your installation issue. If not, feel free to post here and we can discuss it further. If you do have further questions, please be as detailed as you can in your response. This will let us give you the most relevant answer to your situation.
Sincerely,
Ross C
National Instruments
Applications Engineer