Oops, sorry, Jim. Yes the hub is plugged into my iMac.
UH OH!!!! WAIT JUST A MINUTE!!! DH just came in and said he was trying to help and may have jostled something!!!! I double checked the hub connector thingy and it was NOT pushed all the way in to the back of my iMac.
Problem solved and
hubby is in the doghouse!!!!
He is even MORE tech challenged than I am, why he thought he could help is beyond me! This is embarrassing.... I can embarrass myself all on my own!
I am so very sorry, Jon and Jim, and I thank you for your help!!!!!
Sooz, shaking her head and trying to find a hole to climb into