Logging on to my database

Hello Ta,
Thank you for your post, To make an initial attempt to answer your question - MAKE A COPY OF YOUR DATABASE AND TRY THESE OPTIONS ON THE COPY--
First can you check that in your relationships window you have not set referential integrity between any of the tables. If you need referential integrity set you can re-assign it later.
1. Has this made a difference?
If not: Check that you do not have a Form which relates to a table or query that no longer exists, or has had its name changed. If this is the case, go to the Properties for the Form in design view and check the Source is valid, if not select a valid Source for the form.
2. Has this made a difference?
If not: please come back through the forum and we will have to look at some other options.
However I hope one or other of the above helped, best regards Pete.