Thanks for replying Lottie. I finally got everything UNshared, started from scratch and have things pretty well shared as I wish.
UNFORTUNATELY, this has not solved my problem. Maybe you can help or someone will see this post and come to my aid.
I think the problem rests with differences between Vista Home Premium and Vista Ultimate.
It appears to me that my Sync program fails because, as far as sharing is concerned, Microsoft treats VHomePremium and VUltimate as different operating systems.
Here's a brief summary of my setup:
wireless connection...... wired connection
Vista Home Premium.....Vista Ultimate
Now, When I go to windows explorer, I get different results, depending on which computer I am using.
If I am sitting at my ULTIMATE desktop computer, everything works just perfectly.
However, if I am sitting at my HOME PREMIUM laptop computer, where I spend 95% of my time, I cannot explore the shared folders & files on my ULTIMATE desktop. Instead, I get a "login" window, saying "Connect to DESKTOP", which asks for a login and password. This stops windows exploring & the sync program.
Keep in mind, on ULTIMATE desktop, I am sharing exactly the same folders as on my laptop, and with exactly the same permissions.
I logon to both computers with the same administrator account, same password, same everything.
I have tried with & without "password protected sharing".
No consistent differences.
If you (or someone) can solve this, you'll have a new BFF.
Thanks & best wishes,