Slider AutoSize seems to be broken in v. 14.07. It was working in v. 14.05. Try these properties and you will see the problem:
Code:
object sSlider1: TsSlider
Left = 88
Top = 40
Width = 50
SkinData.OuterEffects.Visibility = ovAlways
AutoSize = True
TabOrder = 2
ImageIndexOff = 0
ImageIndexOn = 0
SliderCaptionOn = 'Yes'
SliderCaptionOff = 'No'
ContentPlacing = scpBackground
Reversed = True
KeepThumbAspectRatio = False
end