select method of range error

I've been having a problem with editing design tables (new window) the past couple of months.  Sometimes I will get a "select method of range class failed" error.  When this happens I have to force close excel.  SW doesn't respond after this so I have force close that as well.  I don't know if this starting happening when I upgraded to SW 2013 or office 2013.   Also, why does excell open two instances now when editing a table.  It used to just open the table, now I also get a blank excell intance.  Anybody else seeing this?

Thanks,

Jason

SolidworksConfigurations design Tables