When I export a dimensioned Solidworks 2010 drawing to dwg and open it in AutoCAD 2010 mechanical the dimension unit format appears correct until something is moved. When any dimension is moved it converts the dimension unit format from decimal (two or three place or tolerances etc.) to fractional. When I look in the AutoCAD dimension styles all of the imported Solidworks formats were converted to fractional but they appear correct until moved. Is there any way to keep this from happening? I realize this may be more of an AutoCAD question but any help would be greatly appreciated. Thanks.