Does anyone had to deal with this error, and if so how did you resolve it.

My access application is running in a multiuser environment. It is related to a SQL-Server database. All users can work fine with it but one.
When I try to run my app it gives following error.
There is a reserved error (-7709) occured there is no message for this error.

It must have to do with odbc connection I think, cause when I try to open a linked table I get the same error.
Anyone any ideas??