thanks to a bad par packing, i faced a big failure (NZB ID 2943270, if you want to have a look lol)
as you can see, there are multiple layout problems here
one elegant solution to solve these would be to put next to the usual postprocessing icons, a big red Warning sign

on history items with problems (no Red text with details, because they really mess up the layout
)
Clicking, or even just hovering (much like your Menu) on that Big Red Warning sign will show some kind of AJAX window with detailed postprocessing steps : PAR2, Unrar, Unzip, Delete, .... basically everything we need to solve the problem.
do you see what I mean ?
oh, and by the way I start to like that the menu opens without clicking on it ... ;-)