We have upgraded to V11.3 but some projects won't run because some (but not all) of the databases (.mdb) are not accepted under "Open database...".
However, in V10.5 these projects still work.
The following error message is displayed when I try to open these .mdb databases: "No value given for one or more required parameters". Then Monarch automatically shuts down and starts up again.
I have not been able to find any problems in the monarch forum, but I hope somebody can help me out.