* Hold down LMB on the title, release LMB, before title starts to scroll hold down LMB once again. After ~1s title starts scrolling even though you're holding LMB down.

* After scrolling the song title a few times, when I hold down LMB, wait a moment and scroll once again, title jumps ~20px left or right.

* In original winamp mouse wheel changes volume whenever cursor is over main window. In JS version wheel only works after I click the volume bar and hover over it.

* Move equalizer window down 100px or so. Try to move it left or right. It snaps to main window. In original, horizontal snapping works only if windows are touching each other.

* In original, holding down LMB on a control button and moving it to other buttons causes those buttons to appear pressed in (and register as a click when releasing LMB). In JS buttons act independently.

* Activating double-size mode doesn't move equalizer window if it's snapped to main window. In original it does.

* In original seek bar updates every second or so. In JS it updates continously.