problem with catalyst 2012 installation

I downloaded the setup file, but when I run it, it installs, gets to 100%, and then a popup appears that says the application couldn’t be opened, and nothing more happens - It doesn’t open (not surprisingly), no shortcut, nothing. It doesn’t even create any files on Program Files or anything like that.

Does anyone know why that happens, and if so, what can I do?

Thanks in advance :slight_smile: