halion update 5.1

trying to d/l and install up date for halion 5.0 to 5.1…it won’t even d/l staing a invalid signature issue…i have disabled my antivirius software nortons and trend mico but to no avail…this is very fustating…whats even worst is when your in the program and check for updates your have to navigate all over the steinberg site just to get to the update page… why??..when in one your products and click on update i should wind up on that prodcuts update page :cry: