My spreadsheet has 2 sheets (one main one and one very hidden for certain users only). I was fighting whole morning with very similar issue to the one described, so hopefully I will be able to help. Thank you in advance for your communications. Any ideas, thoughts, or suggestions would be appreciated. This thread is the closest I've found to others that have had a similar issue. Have searched the internet for a resolution but have had no luck.
When I bring the workbook onto my 2013 system I find no issues. The largest worksheet only contains approximately 150 row and makes use of 12 columns. The workbook contains 2 worksheets, 1 macro, and one pivot table. What's odd is if the user Alt/Tab's to a different window, then returns back to the workbook, the selected cells will display the proper borders until the active cell is changed. Nor do the unbordered columns remain the same throughout the day. I've not seen it duplicate the issue for the same set of columns. The first time they showed the issue to me it was not placing borders around columns D-G when they selected a row, then the next time it's a different set of columns.
They are rebooting every night, but when they use the spreadsheet the following day the issue returns, but changes from day to day. I have a customer which is using 2010 and having this issue on a daily basis.
