Any VRM box users out there who could help with this ... I had this box working fine then stopped using it for a while.  Coming back to it now, I can't get the green light to stop flashing when I plug it in ... I've updated the drivers, tried all the USB slots on my PC but same problem.   Any suggestions on what could cause this?

This probably isn't your problem but I'll relate my experience anyway.  Ever since upgrading to Windows 7, my VM box comes up with a blinking light about 50% of the time I start the computer.  If I unplug the USB cable from the back of the VM box and plug it back in after a few seconds, I usually get a good connection.  Annoying to be sure, but at least it does function.

Thanks dmbaer for the suggestion.  I used to also get the same.   Now when I take the USB out of the back of the VRM box and back in again, it still stays blinking.

Does the VRM box work, anyway?  Is it enabled in device manager?  Are your inputs set to receive spdf?

I had that issue when I installed v1.3 so I uninstalled, reinstalled v1.2 and haven't had a problem since...

Now it's on 1.4:
http://global.focusrite.com/usb-audio-interfaces/vrm-box/downloads
 

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My VRM box does that. It seems to have a favorite usb port and does the flashing thing sometimes. I unplug the usb cable and plug it back in. sometimes it takes a couple of tries to get it working.
 
Rocky

Well version 1.4 (link above) driver came out two weeks ago.
 
Another thing to run is Windows update several times including optional performance fixes. There have been updates in windows that effect performance and stability of USB.
 
Another thing to do is check you are on the latest chipset drivers which can handle your USB ports, easiest way to do it is this:
http://forum.cakewalk.com/Driver-Boost-m2928792.aspx
 
Finally upgrading to the latest firmware (always the last thing to do) can help, for the device and your PC's motherboard (which have has the USB functionality built in).
 
So a big chain of dependant software and hardware to follow...

Thanks Alex. I'll give that new driver a shot.
 
Rocky