Users are unable to effect any changes on the database

I am new to Access 2010 and for some time I have been working on creating a database which has tables linked to share point. I am now through with it and everything is running well but now the users are unable to effect any changes on the database. All these happened when I transferred the database to the shared network drive from drive C. Any time they try to make any changes they get a message stating that the object is read only. I am interested to find anyone who can help solve this problem because I don’t have any slightest hint on how to resolve this. Please help.
