Originally Posted by MrSinatra
good spot, but seems counter intuitive... wouldn't you want to enable display scaling if using a big tv?
Not necessarily. All apps expect a certain relationship between the x,y coordinates of the mouse pointer and the coordinates of graphical elements they display. When an independent app (or the OS) re-sizes the graphical elements and the originating app either does not know or is not able to adjust, then the expected correlation between the mouse pointer position and the graphical elements are throw off.
So, when transferring from the little screen to a big screen and mouse clicks are not recognized, stuff like this is the first thing to check.
There is (or was) disagreement on who's job it is to maintain the relationships, the originating app or the app that changed things. Some apps are designed for big screen display and some can adjust, Winamp, it seems, is currently not in either group.
Scaling misalignment can also happen on the small screen when people re-size the elements larger than normal for the selected display resolution in order to help them see things better.