a) yes, i have restarted the notebook after removing question mark
remember this happens also in my 2nd PC, wich don't have any question mark software
c) have you tried to put on your pc the task bar on the left?
d) For me, this happens with all skins
e) I think it isn't that the whole thing is pushed down.... i thing the "show desktop" bar is being extended up... please se the mouse over on the following image: