Looping picture problems...

Hey, im trying to make a screen saver that "loop" though a buch oh pictures that all connect, like so it seems like your going down a tunnel, but heres my problem as i keep going though more and more, it seems to slow down alot. Heres my code for the drawing.

void DrawFaceOffset(float scale,bool firstcall)
{
     //glScalef(scale,scale,0);
     if(firstcall) 
     {
        glColor3f(1.0f,0.0f,0.0f);
        glEnable(GL_TEXTURE_2D);
        glBindTexture(GL_TEXTURE_2D,BlankTxt);
     }
     else
     {    
       glColor3f(1.0f,1.0f,1.0f);
       glBindTexture(GL_TEXTURE_2D,0);
     }
     //glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );

     float width,height;
     width=scale;
     height=scale;
     glBegin(GL_QUADS);
		glTexCoord2f(0,0);
		glVertex2f(-width,-height);
        glTexCoord2f(1,0);
		glVertex2f(+width,-height);
        glTexCoord2f(1,1);
		glVertex2f(+width,+height);	
        glTexCoord2f(0,1);
		glVertex2f(-width,+height);		
     glEnd();
     glDisable(GL_TEXTURE_2D);
     if(scale>0)
        DrawFaceOffset(scale*0.1f,1);
} 

That is called in the draw function, and scale is set to "zoom" which is a float that keeps geting larger as time goes on(it goes up by time, so its not because of the framerate) And you can download the .exe here http://mindcasterstudios.com/kc/picloop1.zip For an Eg of the problem Thanks in advanced. [Edited by - kc_0045 on August 3, 2005 8:50:08 PM]