Sticky Shifter

My daughter's '98 Camry automatic (124K) does not shift easily into Drive. The shift lever sort of sticks moving past Neutral to Drive and is harder to move into the D position than it should be. It doesn't have a positive engagement feel and sometimes when it looks like it should be in Drive it stays in Neutral until you giggle it or move it out then back in to Drive. Once it's really in Drive it shifts and drives fine. Advice appreciated.

FWIW... Tranny fluid was changed w/in the last year. The sticky shifter has been there for the 3 years she's owned the car.