Scroller bug.

There's a bug with scrollers, simple enough to fix though.

You commented out this code:

//// Texture Matrix.
//glMatrixMode( GL_TEXTURE );
//// Offset Texture.
//glTranslatef( mTextureOffsetX, mTextureOffsetY, 0 );

But forgot to comment out this:

// Restore Texture Matrix.
glLoadIdentity();
glMatrixMode( GL_MODELVIEW );

So whatever is drawn after your scroller will have a whacked modelview matrix.
Just comment out the last two lines and all is good again.