Problem:
I start the xbox (i've tried with a controller plugged in and the button) and the middle green light flashes once and then the power supply light turns from orange (which is normal) to red and it becomes unresponsive.

Things i have tried:
Cleaning out the console/power supply of dust
Changing the outlet and everything else listed on Xbox's useless help site
Fiddled around with different combinations of cords plugged in many times
I cleaned the lense last week because of disc errors and it has worked fine up until now

Please Help! Thanks
to responders:
i have gotten a red ring once 2 years ago but i cleaned out my xbox and it was fixed fine, this is not the same symptoms at all

and xbox is not an expensive console... can buy one at game stop for 130$


I have searched youtube and google for my problem but havent found any with the same symptoms exactly as mine
RESOLVED!!!! FIXED!!!!

The problem was with the power supply, i just bought a new one for 30$ and now im good to go again! yay