Something else that could be improved. If you set the FLD source of dayRange filter to a FLD that isn’t of type date but it still has a date value in it (like format “8 Aug 2013”) the lookup within the report hangs…
Can be replicated by using a behaviour to placed util-CurrentDate into a FLD on a form on submission.. then subsequently build a simple report which has a dayRange filter linked to that FLD..
Hope that makes sense???