there are more options for the Circle Method than just the Centre and Radius.

the full Call for the Circle Method is
Code:
Circle (X,Y), Radius, Colour, Start, Finish, Aspect
X, Y and Radius you've already used
[list][*]Colour is a long integer representing the colour of the circle, the default is vbBlack.[*]Start and Finish are the points on the circle the line starts and Finishes at 0 is the rightmost point, 2*pi is right the way around the circle at the rightmost point, so if start = pi/2 and Finish = 3*pi/2 onlt the right half of the circle is drawn.

Aspect is the way of making the circle an ellipse, the value of aspect is the height of the ellipse divided by the width. the value for the radius is the greater of the height and width axes.

so
Code:
Circle (1000,1000), 500, , , , 2
Draws an ellipse of height 500 and width 250
and
Code:
Circle (1000,1000), 500, , , , 2
Draws an ellipse of height 250 and width 500