Comment 36 for bug 67443

I've just edited the "style "clearlooks-progressbar..." (/usr/share/themes/Human/gtkrc) with this (add only the lines between the commented ones) :
---------------------
#Find this line
style "clearlooks-progressbar" = "clearlooks-wide-orange"
{
 xthickness = 2
 ythickness = 2
 fg[PRELIGHT] = "#ffffff"
#Add this to show the orange bar:
#FIX START
 engine "clearlooks"
  {
    radius = 1.5
  }
#FIX END
}
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The progress bar is showing again!, and without error messages.
Hope this will help.

P.S. Sorry for my english...