I have an access file created in MS Access 2003 .mdb, i recently removed MS Office 2003 and installed MS Office 2010 which now will not recognize the 2003 .mdb file. When i do open the file in MS Access 2010 i just get a blank screen. I right click the file and tried to default it to MS access 2010 but it would not allow me the option to use access 2010. How can i convert the file to 2010 so i can open the data based file correctly. The file is an address list 2000 names deep just to give you level of stress. Can anyone help me.