do you have the wildcat control panel

and did you run the configuration wizard ?
from the manual
Verifying under Windows NT
1. From the operating system Start menu, go to Settings/Control Panel/System.
2. Click the Startup/Shutdown tab.
3. Verify that Windows NT Workstation Version 4.0 is selected in the Startup list. If it is not,
select it from the list and click Apply.
NOTE: Do not select the VGA version of the operating system. The video display runs in
VGA mode when the Wildcat III 6210 or Wildcat III 6110 graphics driver is not
running.
4. Click OK to close the System dialog box.
Verifying under Windows 2000
1. From the operating system Start menu, go to Settings/Control Panel/System/Advanced.
2. Click Startup and Recovery.
3. On the Startup and Recovery dialog box, verify that "Microsoft Windows 2000
Professional" is the listed as the Default operating system. It is IMPORTANT that your
operating system matches the driver you installed. Click OK.
4. Click OK again to close the System Properties dialog box.
Guardian of the Sacred Five Terabyte's of Gaming Goodness