Considering this happens with other scrollbars, I suspect this is a bug in Qt. Do you use any other Qt applications? Have you noticed the same issue with those? What version of Qt did you build with and how did you install it?
Considering this happens with other scrollbars, I suspect this is a bug in Qt. Do you use any other Qt applications? Have you noticed the same issue with those? What version of Qt did you build with and how did you install it?