I have a panel along the top that is set to autohide. Whenever i mouseover it and it appears, the widgets inside flicker for moment, but are then ok. This is very annoying. The panel is configured as follows: menu tasklist genmon systray date
Not much I can do about this in the 4.6 panel. The 4.8 panel works differently with this (swapping windows, so widgets don't reallocate/redraw), so will be fixed once the 4.8 is released (or you start using the 7.4 development snapshots ;-).