might want to disconnect the FD cable from the FD and see if it'll shift for you then. if cable tension is too high, the shifter really won't want to release tension, and it'll feel as if you're about to break something inside the shifter.
Rans Enduro Sport, Hase Kettweisel Tandem, Merin Bear Valley beater bike
Since this is a new bike I'd take it back to the dealer to fix.
If you have your heart set on fixing it yourself, goto the Park Tool website and find the instructions for installing a front derailleur. Follow them IN ORDER starting with the position of the derailleur on the seat tube.