A weird problem has recently popped up in my Solidworks 2015.  When I select the Custom properties tab, I see the Excel table flash on my screen.  If I am in an assembly and I select parts, it starts flashing again.  If I select multiple parts at one time from the Feature Tree, the screen flashes multiple times.  It is really starting to get annoying.  Anyone see this and is there a fix?  Im on service pack 4 running on Windows 8.1

Thanks!