Where is 5.7 as an option? I do not like docks, specially under Linux where you can literally see them being drawn.
In 6.0, the layout is the same as in 5.7. In 6.1, it is slightly different but not that much. Are you saying that when starting up of EiffelStudio it flashes a lot? From what I experienced it is not really worse than in 5.7 but I've always used it on a local display.