Mydaq usb connection - lost immediately

Hello,
I just recieved a mydaq, and am having troubles getting it connected. The process I followed, was install the supplied software (labview, NI-Elvis, NI-mydaq drivers), and then plugged in the usb mydaq. It is found quickly, finds driver successfully, and then immediately disconnects. The blue light on the unit stays lit as long as the USB is plugged in.
After unplugging, and replugging in the unit, I hear an audible sound from windows 7 confirming a new device has been connected (same sound as when plugging in a USB drive), and within 3 seconds, another sound is heard, (same sound as when unplugging usb drive).
When I load the ELVIS application, and try to take a DMM measurement, under the Device dropdown box, it says No supported devices. But, when I plug in the myDAQ, "No Supported Devices" changes to "myDAQ1....." for a brief second. So, it looks like its being found, but loses connection immediately.
I may have a defective unit, but unsure. Does anyone have any recommendations on making the DAQ maintain a usb connection

HI,
Just to let you know of my experience. I had the same problem as you . It kept loosing connection and making a sound every time it lost connection, very frustrating.
The fault was my own making . I used a USB cable that was not the original and was longer than original.
Works fine now

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Mydaq usb connection - lost immediately

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