upgrading 2003-2007

[Mike1w]

I have some schedules set up with multiple formulas and macros (originally setup in 2003) however when attempting to make this a 2007 file when I go to copy a sheet to create another schedule I get the message “A formula or sheet you want to move or copy contains the name “xx”, which already exists on the destination worksheet. Do you want to use this version of the name? To use the name as defined in the destination sheet, click yes. To rename the range referred to in the formula or worksheet, click no, and enter a new name in the Name Conflict dialog box.” This was never an issue before and I am not sure why it is not any advice would be appreciated. Thanks.