My acura legend 1991 sedan wont stop steaming after driving it. help me out please?

[thefactremains]

so, my acura drive for abit runs great everything works great. But when the car stops at a light or stop sign, the temp gauge fly's up to close to the red line. And a boat load of steam keeps coming out of my hood, after like tow minuets of idleing, the steam stops, along with the hot temp. I checked the radiator, it doesnt leak, the pump seems to work, thermostat may be old, but seems ot work, thers a dripping coming form around the resivoir fo the coolant, after i drive it and open the hood, the resivoir bubbles alot. please help me out with sum suggestions