I have noticed in SolidWorks 2008 that there is an newfeature thatis not what it is cracked up to be.  SolidWorks2008 nowallows you to edit a sketch and see how that will effectthegeometry of the part as you are changing thedimension. However, there is considerable difficulty when auser triesto edit a sketch that is based completely or partially onexistingfeatures.  It is difficult to add to an existingsketch whenyour sketch plane is on a feature that you are notediting.  Idon't know how to explain it very well.  Theonly method thatI have found to over come it is to suppress thefeature - then editthe sketch.  Please consider making theautomatic rebuildfunction an option in the dialog box.  Isanyone elsecomplaining of this issue?SolidworksSketching