v2.1.0.2 blank page on install

I am trying to install the latest version v2.1.0.2 in a folder
root/xxx/

I already have a running working installation version 2.0.1.1 in a folder on the same root
root/yyy/

When I go to root/xxx/install, all I get is a blank page

Haha silly me. I had the system folder missing. Don't know why, but anyway all is good now.