I reset the computer and the hard shift started, then the CEL came back on, and the hard shifting went away. Taking it to Autozone to get the code read.

I'd love to know what the dealer says when you get it there. I've been to two different ones here and both are 'Mystique' / 'Contour' challenged.

Good Luck!

'97 Mercury Mystique GS (Not mine anymore...) Now running a Toyota Matrix XR Red, 16" wheels, Sunroof, VVT-i