I have built a Database on access 2010. It originally wouldn't open at the office which use access 2007. I went back and to the house and converted the database to 2003. Lost some functions, but overall intact. Took it back to the office and it opened just fine. I then converted it up to the 2007 access database and continued to work on it at the office, then at home.
Today I brought it back to the office and it gave me the original error message "Unrecognized database format". Checked the version, it is still a 2007 Database.
So why is this 2007 Database to opening up at the office using Access 2007?