Hi all,
well...appear ridiculous how I solved my issue:
A critical error has occurred.
"An object reference not definided on an object instance" dont remember the exact text
My system with Win XP Pro, IIS, Default and just new 4.4.1, the issue comes when I upgraded the links module to 3.3.7...then, I tryied all you posted here, uninstall and install again, etc, but, what really solved when I was giving up talking on the phone and playing with top left module menu was "CLEAR CACHE". I know, but before try all the take time SQL and UNINSTALL, try first clear the cache, and then go foward with the backward posts fix,
Good Luck,
Calabresi