I cannot open files using Office 2007 on Vista (tested with Word 07 and Excel 07). I get the message "filename is locked for editing by 'another user'". If I try to open the same file with Office 2007 on a WinXP machine, it works fine.

If I open the same file with a different app on the Vista machine, such as notepad, it works and I have no file rights issues.

Is this a known issue or is there anything I can do to tweak the client to make this work? This seems to be the only thing stopping us now from starting to use Vista.