kan ikke genkende filsystem - Access

This is a typical problem when a databases is shared over a network.
You should try splitting the database into a backend (tables/queries) and a frontend (forms/reports etc.)
The backend is placed on the server, and users have a copy of the front end on their own PC.

Its also possible to place the fronmtend on the server too, but I prefer this setup.
Ther is  awizard for splitting your database into a frontend backend

awizard = a wizard

If you are opening the database using code in a VB program (for example) then make sure that you close the connections when you are finished with them. Not closing them can corrupt the dB

Hi Terry
I have allready split the database in front/back-end
any other ideas??

Morning! Its important that users close down the application correctly, and dont just turn off their PC, and also if you are using recordsets in VBA code then it is very important the clean up (close) the connections after use. It may also be a problem with the network!
I'm off out for an hour or so, will take a look later.

HI Terry
I have allready changed ex:

    Dim rs As Object

    Set rs = Me.Recordset.Clone
    rs.FindFirst "[KundeID] = " & Str(Me![Kombinationsboks6])
    Me.Bookmark = rs.Bookmark

To:

    Dim rs As Recordset
    Set rs = Me.Recordset.Clone
    rs.FindFirst "[KundeID] = " & Str(Me![Kombinationsboks6])
    Me.Bookmark = rs.Bookmark
    rs.close

and it was running without problems for a while (two weeks) but  suddenly the other day it started again..

your code looks fine, you could add

set rs = Nothing

but its not necessary.

I dont think your database is the problem as long as users are terminating the program correctly, and not for example via the task manager. You could ask them to verify this. So I would take a closer look at the network.

If possible try compacting/repairing the database (backend) once in a while. You could have a job which runs each night do do this.

You could also concider have MSDE (SQL Server) as you backend. Its a cut down version of SQL Server, max 2 Gb data, which is the same as Access and optimized for 5 connections, which should be OK in your case.

This will also help in performance.

I will concider to use MSDE... I will go over my progamkin once more..  Thanks for your advises -

thanks!