Problebem with Arduino Uno

[system]

Hello

I bought arduino uno starter kit, few days ago, and i compile few sketches , everything works fine until today,

Today when i plug my arduino to my pc, he give a small tiny light on less and die and don't react any more, i unplugged him and plug him back, and the same shit....

Does any one have the same problem ?

[system]

everything works fine with arduino, the other hardwer was making problems, after i remove wires and things arduino is fine