V70: Gearbox Auto problems

[JAMANDA2]

Have a V70 SE Lux D5 Auto. 08 reg, with 85k on clock. Owned for 2 years. love car, hate auto gearbox. Previous car was 99 reg. V70 with auto box smooth as silk. This cars autobox has a mind of its own jumping all over the place, as does the lock up clutch, late locking in and early dropping out leading to poor fuel consumption. Sometimes not locking up in steady traffic around 25-30mph. and dropping out at similar speeds as you decelerate towards islands etc.
gear changes are not always smooth with jerky operation, snatching etc. leading to uncomfortable rides at times.
The car has been checked by Volvo service agents, as our main Volvo distributer in Derby did not want to know when I enquired about an auto gearbox service. It has had the programming checked and reloaded and they say nothing is wrong. Only thing not undertaken is an oil change to the auto box.
My own feeling is the programming. Any ideas, suggestions would be greatly appreciated