Correct fold?

Villain isn't more aggresive than the standard good player and he don't overplay his hands from what I have seen.

Party Poker 0.50/1.00 Hold'em <font color="#0000FF">(10 handed)</font> link

Preflop: Hero is MP3 with 9[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/spade.gif[/img].
<font color="#666666">5 folds</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 folds</font>, <font color="#CC3333">Button 3-bets</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero caps</font>, Button calls.

From my read, perhaps I should just call.

Flop: (9.50 SB) A[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets</font>, Hero calls.

Not much to call. Or do you fold here?

Turn: (5.75 BB) T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets</font>, Hero folds...

Standard? How many of you call down every street here? Or how do you play it differently.