If a file is created with Project 2007 and the file is saved down to the 2003 file format then there is a problem with the file becoming corrupted no matter which version of the application opens the file and saves the changes. When I am opening the file then an error comes up "A circular reference exists". After opening the file tasks the missing (blank spaces) or the the sequence of the tasks has been changed. Can anyone please help me out? Thanks.
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