111,116c111,118
<         
<         ALLEGRO_TRANSFORM old_trans;
<         ALLEGRO_TRANSFORM identity_trans;
<         al_copy_transform(al_get_current_transform(), &old_trans);
<         al_identity_transform(&identity_trans);
<         al_use_transform(&identity_trans);
---
> 	    
> 	ALLEGRO_TRANSFORM old_trans;       
> 	if(al_get_current_display() != NULL){		
> 		ALLEGRO_TRANSFORM identity_trans;
> 		al_copy_transform(al_get_current_transform(), &old_trans);
> 		al_identity_transform(&identity_trans);
> 		al_use_transform(&identity_trans);		
> 	}
156c158,161
<         al_use_transform(&old_trans);
---
> 	
> 	if(al_get_current_display() != NULL){		
> 		al_use_transform(&old_trans);
> 	}