I have finally figured it out, at least somewhat, I think. When I use the Copy command from within eReader is does NOT necessarliy copy the file in Palm RAM to the Books folder on the card. It puts it in the Launcher folder (on the card) or it puts it in some invisible place. This seems to be dependant on where other eReader files are located on the card.
I am using a Mac, and the HotSync Manager app for the Mac does not have an Install Tool as does the version for the Windows PC. Therefore, if you install a doc file you have two choices where to put it on the PDA. It either goes into the PDA's main RAM or it goes into the Launcher folder of the PALM folder on the SD card. You cannot control where it goes on the SD card, that is automatic. Now that you have established the Launcher folder on the SD card as the eReader doc's file folder it continues to use that folder.
Where my problems began is that my SD card had originally been used in my old TE and over the two years of use I had occasionally had problems for one reason or another that corrupted various files in various places. Well, I just stuck this card into my new TX and started using it. This is where my problems began. The TX was trying to make sense out of a mess and it could not.
As it turns out, to install books directly into the PALM/Books folder on the SD card I must use a card reader and the desktop computer to get at least one book or doc file in that folder. THEN the Copy command from within eReader will indeed copy files to that folder. Otherwise, it would copy files to the Launcher folder on the card or to some nameless/invisible place which could never be located.
Moral of the story.... when you get a new PDA start with clean installations of all files and apps INCLUDING starting with a clean SD card. Yeah, like I will remember that next time.
