I just bought an arduino Uno and downloaded the IDE 1.0.5
and now I'm having trouble with my arduino uno being recognized by my Windows7 computer. It comes up as unknown device in the" Universal Serial bus control" in the device manager . ihave tried to use or activate the driver (arduino.inf) in Drivers file
and the windows said it's already updated after that i plugged out the uno and then plugged it in, it turned on the LEDs on the uno for a while and then the sign comes out said that there is unknown device etc.
I apologize if there are any language mistakes