No longer recognizes external HD

Johnboy:   Here’s a little test you could try out, if you’re in to experimenting with software:

Go download the UBUNTU LIVE package.   This is a bootable CD or Thumb Drive that lets you run LINUX directly on your PC without doing ANYTHING to your existing Windows install.   Remove the disk and next reboot it’s back to windows like nothing changed.

Anyway, the Live / Live+  / Live Hub are based on Ubuntu Linux.   See the GPL code for the WDTV Live to see which version of Ubuntu is being used.

So you can boot on an “equivalent” Ubuntu Live Package and see if IT recognizes your USB drive.

If it DOES, then that tends to point one direction.  

If it Does NOT, then it points in the direction of the problem being the UBUNTU LINUX operating system, and the LOG FILES in Linux can give LOTS of details as to what the problem actually is.