[Solved] Driver class could not be loaded (after moving to new PC)

[rogmufa]

Hi,
(This is not actually about external data sources, but it's the nearest category....)

I have been using OO 4.1.14 without problems for a long time - OO Base with the 'new' split version (Windows10). Now I need to move it to a 'new' PC (still Windows10).
I copied the whole database folder (contains the Mybase.odb and hsqldb.jar files just as before) to the new PC,
but now when I try to open a table I get the error:
"The driver class org.hsqlbb.jdbcDriver could not be loaded".
"The additional driver class path is [location of my DB folder]/hsqldb.jar"

Settings show:
Settings/OO/Java: jre1.8.0_471 on the new PC, but jre1.8.0_401 on the old PC (could that be a reason?)
Settings/OOBase/connections: “Current driver com.star.comp.sdbc.ODBCDriver” on both new and old PCs.

I have tried googling the subject and searching in the OO Forum but can't find help.

PLEASE could someone help!?

Regards
Roger

[rogmufa]

SOLVED! I fetched the file hsqldb.jar from OpenOffice4/program/classes and copied it into location of my DB folder, replacing the existing file - and it now works!

It seems strange that the hsqldb.jar file (which was in the same location of my DB folder with all the scripts and mybase.odb - which were copied to an external drive), was causing the problem. Maybe just hsqldb.jar file was corrupted.
But all the scripts and mybase.odb seem to be OK.
Panic over!
Roger