windows 8.1

I am installing my first wired camera system. When trying to install SmartPSS, the first page of the installation process comes up, but the window displays no "Next" or "Cancel" buttons. I see such buttons on the corresponding page of the instructions at SmartPSS/Install Smart PSS - Dahua Wiki ...

Hello all, I´m new here. I´m running BI 4 64 bits, updated, on Windows 8.1. The thing is, my cameras keep recording after trigger. For example: there is a trigger on 10am, a single one, and on 1pm it´s till recording. Recording is configured only if trigger. And it happens not all the time...