LO will not open database

I upgraded to from 4.1.0 and now I cannot open a database that I had created under a prior release and used with 4.1.0. Base hangs if I double click on the data base. If I open Base and try to use an existing data base (the same one) Base tell me to connect to one on a server. Mine is an hsql stored on my pc. I want to report this now as I will be going back to 4.1.0 as I need access to the database. I have a pc that I use for testing and I will use that pc to test any suggestions and , hopefully, a solution.

Please upgrade to latest Version: I remember I had similar problem with (base report crash) an older version and waited till newer one.

Good Luck!