I created this workbook in excel and its doing everything I wanted it to do. strange thing is happening though - the first time I save this onto a harddrive, when i exit the first time before I save, and it asks me if i want to save and I click yes, it says excel had an error adn needs to close. excel restarts adn the changes were saved. this only happens the first time that i save it. if i keep playing around with it after that I have no problem. but it happens every time i delete the old file and replace with a new copy. I tried this on a few different computers - all using excel 2003. I am attaching the file. any help would be greatly appreciated....i'm at a complete loss.....