DXF output - Arcs converted to muliple segment polylines.

We regularly output DXFs at 1:1 scale for a CNC router, andfound that certain arcs were converted to polyline segments in theDXF export when using SW 2007.
This is not acceptable for our CNC router, as the change ofdirection at each segment corner causes the cutter to stop &start.
I reported this to my VAR who sent it on to SW
This is the SPR:-
SPR 353664 - If arc size is bigger than 500, exporting it as DWG orDXF in scale 1:1 will get multiple segment polylines.
As a interim solution we have changed our DXF out drawing templateto use metres as a unit, instead of milimetres. This allows thelarger radiuses to output correctly (as long as they are smallerthat 500m rad!)SolidworksImport export