i keep getting 2 red rings on my xbox when playing games. every 10-15 minutes. i have the xbox 360 elite and its only a little over a year old.

whenever i just sit at my dashboard, and watch a movie or listen to music it will stay on all night. but when i play a game. it only lasts 20 min. tops.

i read that 2 red lights means overheating. well. my xbox is set down horizontally. and there is absolutely nothing around it, and its not even hot. even my power adaptor has plenty of ventilation. idk what to do. i think its already past warranty because its over a year and is not the red rings of death, its just 2 rings. please help?

i even tried dusting out the vents with a vaccum cleaner. i dont have air duster and i doubt my parents will buy it cause of its recreational use :/