Problem after upgrade from 3.10 to 4.0sp3

Hi,

about a month ago an upgrade from 3.10 to 4.0sp3 was performed - navision db server not SQL.
Procedure was quite typical:
- backup 3.10
- install 4.0 server
- install 4.0 client
- restore bkup.

After that it appears, that some permissions were kind of lost: the list of roles, users, user roles is the same in both systems, but in 4.0 users can't access some tables that were available to them in 3.10.

The second thing is that attempt to backup 4.0 results in error message about invalid data structure (1190 in module 19) - table g/l account field No.

Any suggestions, especially about the 1st problem?