Well, I read some posting on some other web sites stating that the macros in Excel 97 would not be compatible with Vista. After lots of attempts to make it work, I'm now a believer. I broke down and have upgraded to 2007. Hey, I love this spreadsheet, so it's all good!!!! Thanks for your help. I'm now up-and-running, however I have no suggestions for users of Vista/Excel 97 other than to upgrade.