This seems to have become worse and worse in recent revisions of MS and UB. When the spreadsheet is open on a net or part tab in UB or MS every time I touch a net or part or row in the spreadsheet it redraws the screens over and over and over for many many iterations before calming down. At least 3 times but sometimes as many as maybe 10 or more times. And it's not very fast either. It is becoming VERY irritating.