Excel Problem/user specific

I have multiple machines running windows 2k/office 2k. On one specific machine, the user cannot access a shared spreadsheet, gets the error “Excel.exe has generated errors and will be closed by windows. An error log is being created.” When I log in as administrator, or any other user, I can access the spreadsheet fine, just not as this particular user. I have searched for hours and have not found anything that helps. Tried removing/reinstalling office to no avail.