Viewport is clipping...

OpenGL OpenGL: Basic Coding
1

Alright, i’ve recently noticed that there’s been some clipping going on.

on top of my 3d rendering, i’ve been displaying some text, but it worked well enough, so i never really paid a lot of attention to it, like correctness and such.

well, now i started to and i realized that it’s clipping everything to the right, and some things to the bottom…

i went and threw some lines out there, to see if i could make them appear correctly, but no dice.

here’s what i’m doing.
basically, i set up an orthographic projection

glMatrixMode( GL_PROJECTION );
glLoadIdentity( );
glOrtho( -1.0f,1.0f,-1.0f,1.0f,-1.0f,1.0f );

glBegin( GL_LINE_LOOP );
    glColor3f( 0,1,0 );
    glVertex2f( -1.0f,-1.0f );
    glVertex2f( 1.0f,-1.0f );
    glVertex2f( 1.0f,1.0f );
    glVertex2f( -1.0f,1.0f );
glEnd( );

but it’s always chopping off the edge, be it in a window or fullscreen (using win32, not gult)

any ideas?
anyone ever experience similar phenomina?