Routine, or should I be folding these?

[mybrainssore]

***** Hand History for Game 2579008277 *****
50/100 Tourney Texas Hold'em Game Table (NL) (Tournament 15067190) - Mon Aug 22 16:19:42 EDT 2005
Table Table 11135 (Real Money) -- Seat 9 is the button
Total number of players : 8
Seat 1: urgggh (745)
Seat 2: NoBigDeal1 (1060)
Seat 4: Hero (915)
Seat 5: viet_soldier (1050)
Seat 6: Mcaan (1245)
Seat 7: DirtyChuck (795)
Seat 8: swisher7769 (3465)
Seat 9: BHGANO (725)
urgggh posts small blind (25)
NoBigDeal1 posts big blind (50)
** Dealing down cards **
Dealt to Hero [ Ah, Kd ]
Hero raises (150) to 150
viet_soldier folds.
Mcaan folds.
DirtyChuck folds.
swisher7769 folds.
BHGANO folds.
urgggh raises (720) to 745
urgggh is all-In.
NoBigDeal1 folds.
Hero calls (595)

[durron597]

What buyin is this? It looks like a $55 or above from the stack sizes, which means that Villian probably has a hand, but realize that if his range is exactly AA-QQ, having QQ is equally likely as AA and KK combined because of your hand.

I'd have to run this through SnGPT, but I think this is a call anyway. How did villian lose his 255 chips?