Have a simple program which Copies a Template Excel Spreadsheet to the Window Temp Folder, opens the Temp File via Automation, fills in a few Cells, Prints the Spreadsheet and Quits Excel. Has worked perfectly for years.

All of a sudden only 2 of the 5 Cells are filling-in correctly on a couple of User's Computers (as of 12/12/14). Don't know why this is happening (both computers running Win 7/Excel 2007).

Anyone else seen this happen?