Auto-transmission failure

I have a 1994 Mercury Topaz 4 cyl. About two weeks ago I started noticing that the car would jerk when stopped at a stop light. Then it would hesistate as I accelerated. It also took a longer time to switch to the second gear. I changed the Transmission fluid, but nothing was changed. Is there anything else that I might need to do or are my worst fears correct; the transmission is going and needs to be replaced. the car has 76000 km on it. Any help that could be provided would be greatly appreciated. Thanks

Steve

Sounds like to me that a valve is sticking in the valve body and should be cleaned, located inside the transmission. Most transmission places will remove the valve body and clean them if thats what you want but again it might be better to have the whole thing rebuilt, Meaning the tranmission