Are you trying to make it solid or not solid as translucency would imply you wish to make it non solid.
Sorry what I meant was the 'disable translucency' setting of Start8 is not working; I am trying to make the taskbar opaque to match the start menu.
Edit: I am an idiot. I just realized the "Disable translucency" tickbox in the Style section of the Start8 config window is referring to the start8 menu itself, and the tickbox for the taskbar is in the Desktop section... Sorry for the confusion. 