hunting

Hi guys, Had a very strange one the other day on my 821 Hyperstrada... On my way home from work the bike started hunting at idle when stopped at the lights. It then stalled a couple of times when the fuel light started flashing (had plenty of fuel) and the ABS light stayed on (again at idle...

All, when the engine is warm the bike "hunts" for fuel, easy off the throttle and the bike surges and wont ride smooth, change down and its the same issue. Its like its hunting for fuel. Anybody else experienced this and if so what did you do to correct it - remap? power commander?