what do u mean by selcct the creen by clickin on it?

Dang you open rs, open the program click the select screen option, a little square should appear, drag the square to the screen where your player on rs is, let it go and it should select your screen if it doesnt work. Maybe the version is outdated and I will try to get a new one for you guys.

i says cannot find runescape screen! :(

Ill have a look at it.