Has anyone had problems with Just Flight C-46 InstallShield Load system? I purchased the aircraft, now it won't load with the installer. I get an authentication error,

as it states. I have the key, but it won't authenticate. I have tried 3 downloads, with no-joy. I have contacted them and they want me to install IE, which I won't do

anymore (too many problems), also I have a connection, firewalls are down, I obviously have an internet connection, as I am chatting here and I downloaded it.

I was hoping for some answers.

Many thanks...