INF driver install not working

Hello to all!

I wanted to update my INF driver from 9.3.0.1011 to 9.3.0.1019.
I start the setup click on 'Continue', 'Yes' and 'Continue' again,
and... it tells me instantly that setup has finished and stuffs
has been installed. Of course nothing happened, and all I can do
is closing the application. Checked the drivers, everything is 1011 version...

It is pretty annoying cannot figure out what might be the problem.
Really want to try out if there is any difference with the 1019
version, since I'm having a problem with my webcam and read that
a motherboard update might help...

Thanks for any ideas and help in advance.

J