Can't update Flash Player (OS X)

Hi there,

I've been having a problem with the Adobe Flash Player Installer over the past couple of days, when I get to the install page it won't let me click next or any of the install radios.

I've uploaded a video to my Dropbox here - https://www.dropbox.com/s/bcdl9e6xoaxj1pf/ScreenFlow.mov

I've tried updating through Systems Preferences and clicking "Check Now" which prompts me to download the install package, I've also tried downloading through the Adobe website.

Any help would be greatly appreciated,

Thanks!