Workbook flashes

[DaLook]

I have an end user who s excel files constantly flash. I managed to fix some by unchecking "Show Page Breaks" but it does not work for all files. I also have tested these files on other PCs with no issues. Old file new created files all flash. Anyone have some other suggestions that I could try or come across this before?

Thanks
Paul

 

[Legacy 234512]

are they macro-enabled files? there may be some code executing in the background causing the flashing

 

[DaLook]

no macros