collision detection

so ive created a level 1 maze and i have my actor but for somereason it collides with the wall way before my actor even touches it, why is this?
my actor wont even go thru the maze cause it hits on both sides...
my actor wont even go thru the maze cause it hits on both sides...
Comments
[IMG]http://i54.tinypic.com/alkbas.png[/IMG]
and the mouse was pointed the other way trying to go in that hole and thats as close at it owuld let me go.