Thanks for the feedback Rob. You've given me ideas for further testing.

I'm mostly disappointed that the dongles don't work. I bought 4 solely based on the other poster's statement that they worked for him. I am not sure why they would for one person and not for another, unless I am experiencing hardware issues (I will perform further troubleshooting).

But at least the Targus hub works. I still find it odd that it won't, though, if I'm charging the tablet while it's connected to the hub. That to me is very strange.