I often use the filter in Omniture reports -- and then decide I want to break it down by some other dimension -- never do i break everything down first --
and find it quite frustrating that the filter is removed once I choose a second dimension.
retaining that filter should be default behaviour.
I feel your pain! I thought this was a bug for the longest time, and just kept waiting for the fix to go live, but customer care said it's intended behavoir. Very strange. It would be like removing a segment when you do a breakdown.