The problem is that i can't get into the preboot mode
when i starter up the nuvi510 it's come in the screen whit the logo "garmin" with the tekst "loader loading..."
The computer doesnt also see the nuvi as a masa storage
when i tryed startet up the nuvi into preboot mode i see after 30 sec. a with screen with left under a black point with the tekst "touch dot"
and than i get the screen whit the logo "garmin" with the tekst "loader loading..."
that it's