Problem Uploading

I recently purchased a UNO.. , and just starting to make few projects., Suddenly, While uploading a program IT said an Error in Uploading

Then.., I noticed the ONboard Green LED is getting dimmed and is goin OFF., Again , IF i remove the USb and plug in, the leb burns bright for seconds. then again fades.

I have also ordered Servos today, and my arduino isnt fit to enjoy., Please help ME, im in trouble.

Disconnect anything you have connected to the board and try the simple "BLINK" example.

Power it only via the USB cable for uploading.

If that fails you may have an issue with the board.

Thanks a lot., I pressed the reset button and later uploaded blink
Now its perfect