First time I've ever punched my monitor

[chube]

$77 tourny...
PokerStars No-Limit Hold'em Tourney, Big Blind is t100 (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP (t4655)
CO (t4485)
Button (t6560)
SB (t3465)
Hero (t2390)
UTG (t7115)

Preflop: Hero is BB with Q[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">UTG raises to t400</font>, MP calls t400, <font color="#666666">3 folds</font>, Hero calls t300.

Flop: (t1250) 2[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, <font color="#CC3333">UTG bets t600</font>, MP calls t600, <font color="#CC3333">Hero raises to t1990</font>, UTG folds, MP calls t1390.

Turn: (t5830) K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>

River: (t5830) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: t5830

Results:
Hero has Qs Js (flush, king high).
MP has Ad Kd (four of a kind, kings).
Outcome: MP wins t5830.

Fold preflop?