Facing Weird Bet on River w/ flopped flush

[str14]

PokerStars Game #15479551503: Hold'em No Limit ($0.01/$0.02) - 2008/02/22 - 20:51:24 (ET)
Table 'Solstice III' 6-max Seat #4 is the button
Seat 1: Devil 669 ($3.49 in chips)
Seat 3: peteyeyamie ($5.37 in chips)
Seat 4: cas202 ($1.68 in chips)
Devil 669: posts small blind $0.01
peteyeyamie: posts big blind $0.02
*** HOLE CARDS ***
Dealt to cas202 [6c 7c]
cas202: raises $0.06 to $0.08
Devil 669: calls $0.07
peteyeyamie: calls $0.06
*** FLOP *** [4c Jc 5c]
Devil 669: checks
peteyeyamie: checks
cas202: bets $0.18
Devil 669: calls $0.18
peteyeyamie: folds
*** TURN *** [4c Jc 5c] [Jh]
Devil 669: checks
cas202: bets $0.30
LuckyMindy joins the table at seat #5
Devil 669: calls $0.30
*** RIVER *** [4c Jc 5c Jh] [7h]
Devil 669: bets $2.93 and is all-in
bkn49 joins the table at seat #2
cas202: ???

[shazbox]

id call

not much he has that beats you, 44, 55, 77 (unlikely since you also have a 7), and j-boardpair

could be a lot of things that you have beat, i.e. any jack

[ChrisTheFish]

Yeah, sometimes its a boat, but mostly i'd expect to see a J here