We have recently seen an issue with design tables. After opening up the design table through either the part or drawing and editing the table, Excel repeatedly opens and closes multiple times. I don't know if it has anything to do with it, but usually both the part and drawing are open when this happens. It also occured after installing 2010 SP 4.0. We are using MS Office 2007.
Thanks,
Jeff
SolidworksConfigurations design Tables