IDK, I remember having that problem too in the past with Silver Light oo. I haven't had it in a long time though... granted I usually watch Netflix on my DVD player now... I have installed Office on three or more computers in the past year and had no problems with permissions. That is all I can tell you.
Just curious but what do you need Silverlight for? Nothing uses it anymore. Well maybe still Netflix, but that's not a problem if you use Safari.
Netflix only started yesterday for my region. In the meantime, a competitor was offering discounts and a free year subscription, thought I'd give it a try. Basically a bunch of TV shows.
They use silverlight. Tried to install, was a temporary no go, so went no problem I want to use my iPhone anyway, but they don't make an app for phones to view. Bah. So ok I can use my age old iPad 1. Not ideal, but I guess if I have to.... BAH supported from iOS 6 onwards (last iPad 1 release is iOS 5.1.1).
Sometimes it frustrates me how hard it is to try and obtain stuff legitimately. I mean, You have to go through so many hoops and stuff when pirating is potentially easier, cheaper and higher quality.
I did make a thread hoping to discuss it, but it was locked down. I know piracy is a no-no (on this forum and in general), but I thought discussion was ok - just wanted some thoughts on the matter.
Anyway, that's all beside the point. Might sign up for Netflix. Thing is the website doesn't tell me what is available. LOL.