Bit of juddering from my DSG box on take-up

[IanK]

I've had a BKP 140 Estate for a few years. I'm very attached to it and want to keep it for as long as I can.

There has always been a little bit of judder when taking up the drive, but I've been happy enough with it not to worry.

However my local garage are telling me that there is possibly a torque converter problem. Is this easy to fix? Expensive?
Does it mean a change of the gearbox?

(The box has its own service schedule and is coming to its next 40000 oil change. Its done 140k. Engine still sweet, and I'd like to get it sorted if it isn't a silly proposition.)

Anyone come accros the problem? Remedy.?

Thanks
Ian