For those of you with a problem where the USB760 ejects allows connect for 50 seconds then shuts down and goes to yellow led.
I had the same problem and went through some troubleshooting.
I finally changed from a ATI USB controller based MB to an Intel USB based MB and USB760 started playing with no problem. Same HDD and 8.10 install only changed MB. See my thread http://ubuntuforums.org/showthread.php?t=1275352 if you absolutely, positively need a remarkably ugly way to make this modem play with your system.
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