@cbeaver: You need to enable Private Messaging. This is in the "Edit Options" of the control panel. If this isn't there, it has to be added somehow. You can try posting in
https://www.mobileread.com/forums/sh...d.php?t=319819 to ask it to be enabled, or contact a moderator.
But, unless the SD card is failing, it is unlikely that the image will help. The computer not seeing the device could be the computer or a failing USB port on the device. Or cable. Otherwise, there is nothing in the image that would not have come from doing a factory reset.