hi, i've had a usb module for a while and recently i've noticed that it's not been working reliably. i plug it in and i get
the status led is green, then red, then nothing. i've switched usb cables, i've even plugged it into another
one of my macs (both macs are running 10.7.2) but it doesn't seem to work.
is there anything else i can do to troubleshoot this?