Attendance reportedly dwindled by the week for one of ATC's best offerings last season. (Maybe we're not so intelligent and tolerant after all.) Thomas Gibbons' Permanent Collection was a smart, impartial study of race relations in one of society's upper echelons, an East Coast art museum. Robert Jason Jackson and Bob Sorenson brushed every stroke perfectly as sincere, wronged and wronging men; Samantha Wyer, as always, directed with finesse. Where was everybody when this fine production was on the boards in March?