Thanks, Sean, setGridModulus did exactly what I wanted. Used: setGridLineFraction(1/32.0) OvalPortrayal2D(Color.red, 1/1.5D) See Solved.png. Re: 2. I already had the revised Border amendment. I am just advising you of the following and don't expect you to do anything about it. Investigated a bit further and I will probably start afresh as I am getting strange behaviour as shown in Double_in_the_Frame.png. If I step the sim it looks as expected, when I run it I can see duplication inside the Display frame. A secondary console counter is shown one step behind the primary console. Also, a Grid is shown underneath the primary one out of synch by two grid lines. Strange! Re the Border edges, I can get them up to ObjectGrid2D( 45, 40) after this they just do not appear. Kind regards, Stewart. > > > > EMAIL DISCLAIMER http://www.york.ac.uk/docs/disclaimer/email.htm <http://www.york.ac.uk/docs/disclaimer/email.htm>