Thanks for the tips,
as I mentioned in the previous post, I tried 4 different Cables on 3 different computers ( with WIN 8 x64 , WIN 7 x64 , WIN 7 x32 )
of those I include another one of mine ( Nuvi 2495 ) and my colleague ( Nuvi 2599 ) they are recognized ! My Nuvi66LM not recognized !
On my previous trip, a friend of mine was with me and he was digging something in the menu.

Could he have made or changed any setting, accidentally turned off USB ?