In our conversion from 2008 to 2009 we noticed that a number of models that had appearances applied are now having issues. It seems that during the conversion SW has applied appearances to faces and features within the part and there does not seem to be a good way to get rid of them. In some instances they will go away via using the edit appearance function but on many of them they seem to always revert back to a color that isn't defined in the appearance menu. I understand that 2010 seems to have corrected the issue via a new command but as SW is not back wards compatible and we cannot upgrade and still provide data to our suppliers using 2009 its not an option. Is there any quick way to remove all the color assignments in SW 2009 and get back to a model of one color?