Quote Originally Posted by alecs1 View Post
The simplest way to see it is to run a Qt4 Assistant and resize the 'Sidebar' dock that Assistant has on the left.
It doesn't flicker, it just relayouts really slow, and that's mostly because of the tab widget.
I am afraid you can't do much about that, except waiting for 4.4, where things like this are said to be improved.

And you can't actually call this a bug. More a side effect of layout flexibility.