Recently (last few days), sometime when I start the car and shift to drive (Sportage 2001, Automatic, 2.0L DOHC) I get a strange reaction:
1. There is no "slow advance" from the gearbox
2. The gearbox/trasnfer seems to resist the engine (I hit the throtlle and it feels as if the arm breaks is on..)
3. There is a short "metal grinding" sound from the bottom of the car.

After I drive for 1-2m everything is find.

Any thoughts?