Hey guys,
I have an original board purchased from robofun.ro, and I got this message also.
I've read the issues and story behind this ...
I solved the issue by reflashing the USB to serial firmware to -> Atmega 16U2 using the official image named UNO-dfu_and_usbserial_combined.hex following the instructions here:
Remember that V3 has an 16U2 not a 8U2 chip.
The VIDs are now:
USB\VID_2341&PID_0001&REV_0001
USB\VID_2341&PID_0001
And the board it's no longer comming from an "uncertified manufacturer". Everything looks peachy 
Did this just because I was simply annoyed by seeing "uncertified manufacturer" next to the COM port in 1.6.1 IDE.
Hope it helps the purists out there
Popte.