Searched this forum and Microsoft and can't find any referance to this problem.

With Excel 2007, when opening a workbook, I will find that all the columns in a sheet will have re-sized themselves to the smallest posible width. I can't determine a consistant pattern of this happening. Sometimes EVERY sheet in the book will be re-sized, and sometimes only 1 sheet. Sometimes everything will be ok.

Anyone else had this problem? If so, what is the fix?