Sometimes when we save a file it is lost - we get a error that reads "not a valid file" with proper extension, etc. However
there is NO QUESTION about the name and extension being correct and we can open in another place (c drive or network drives) IF we have remembered to save in all 3 places! We had to resort to this triple saving - when we realized what was happening. It happens on 3 different computers and users in the office. Is there something we need to be doing differently or we can check to resolve this problem?
thanks in advance