If you uninstall MAX and the GPIB drivers, then you won't get anything to work. First, what NI card are you using? What version of MAX/VISA/NI-GPIB (from MAX, expand Software if you're not sure)? What OS? Did you run the NI-488.2 Troubleshooting Wizard (right click on the GPIB listing under Devices and Interfaces)? Is the instrument actualy configured for GPIB and not some other communication protocol? Have you tried a different GPIB cable?
There is a LabVIEW driver available for the instrument that you can download
here but until the instrument is recognized as being on the bus, it won't help.