Resolved.
The cause was that McAfee had blocked the "NI PAL Service Manager", (NIPALSM.EXE). This apparently caused the "NI Device Loader Service" to stop running properly which in turn caused the system to fail to properly recognize the USB-6210. Other symptoms included:
1. A failure to show a properly installed cDAQ chassis or it's plug-in in MAX. The chassis appeared in the computer's Device Manager as a NI DAQ Device, but would not appear in the device list in MAX.
2. The Device Loader Service would not start automatically. If the service was started manually it would not function or it would simply "Stop" itself.
These issues were experienced on a Dell Latitude laptop running Windows 7 Proffessional, Developers Suite 2013, MAX 5.4 and McAfee version 6.0.0.