vray rt installing problem

hi everybody, i’m new here…
i found problems installing the latest version of vray rt (1.5): when i install it the only one selectable checkbox is “standalone render slave”.
I don’t know if it’s really a problem, but when i open 3ds max i can’t see any option for the activeshade, and if i open an old scene (where i used vray rt) 3ds max can’t find vray_rtmax2010.dlr !
i think it’s a plugin problem, maybe during the installation it’s not created…i’ve tried with both reinstall and redownload of the software, even vray and vray rt, but nothing happens…
hope u can help me, i need it!
thanks everybody, giorgio.

Did you already re-program your Vray license dongle to allow for the RT license?

If you installed V-Ray 1.5 SP4, and you wish to install V-Ray RT, you need the latest version of V-Ray RT as well (1.5 SP1). V-Ray RT requires you to have a particular version of V-Ray installed first and if it cannot find it, it will only show the “standalone reder slave” option.

Best regards,
Vlado