peugeot 206 auto gearbox?

hi everyone,
I own a peugeot 206 W'reg Auto, today I was driving the car normaly and suddenly the gearbox lights including the 'S', 'Winter' and 1st lights started flashing like chrismas lights and the gearbox sounded giving funny noise so i stopped the car turn the engine OFF for few seconds and started it again... it was fine...
Could anyone please advise what could have caused it to what happened and what sort of problem I'm looking at...
Please could you please advise me

Thanks
johnny