very basic code programming question

I am making a little simmulation of cars moving on the road. The thing is I made my form and coded the road coordinations into the picturebox but it seems the picture box is down of the form and I have to click the picturebox to be able to see the road lines. Maybe theres some code to refresh the picturebox and im missing it.

Also I made a circle to illustrate cars but i cant get to move from left to write.


additional info.
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picturebox name: autopista

autopista.Circle (98, -5), 1, RGB(0, 0, 0), 6.28, 0 'car in left lane

Autopista.Refresh

This should refresh your PictureBox.
Hope this helps.

Oh! I was forgetting the Circle.
The circle method only paints a circle inside your PictureBox. You can't move it. If you want to move it you gotta made a Shape control with its Shape property set to 3 (Circle). Then you can change the Left property for moving it from left to right and viceversa.