Yes. Please upgrade to NI-VISA 3.1, now available at www.ni.com/downloads
We fixed several USB bugs, including:
1) interrupt endpoints
2) interrupt events
3) unplug/replug - your VISA session will now return VI_ERROR_CONN_LOST if the device is disconnected and will work when you plug it back in, no need to close and re-open the session!
Dan Mondrik
National Instruments