MX XM - CAD conversion problem

I am using MX XM Patch 1 for SU2, opening in PowerDraft and was wondering how I can increase the points created on CAD conversion. I am trying to convert a roundabout that I created with the roundabout tool and it looks terrible because of the lack of points created on the string. Is there a setting for chord to arc tolerance that I am missing ? Does anyone have a better idea. Please help.