Also, if you haven't connected the chassis yet, you probably won't see anything even if the card is recognized. The PCIe card will show up in device manager as PCI bridges, but they're considered system devices and you won't be prompted to install them. They won't show up in MAX at all.
If you want to see them, open device manager, view devices by connection, and start expanding a few things. In XP it goes something like this: "ACPI Multiprocessor PC" -> "Microsoft ACPI-Compliant System" -> "PCI bus" -> "xx Root Port" or maybe a generic bridge -> "PCI Standard PCI-to-PCI bridge" -> "PCI Standard PCI-to-PCI bridge". The last 2 bridges are the NI PCIe-8371.
If you have the chassis attached there should be more stuff below that as well. The other thing to check is the DIP switches on the card. They should all be off.
- Robert