On Wed, 10 Jun 1998 09:49:50 +0100,
Modesto <mod@clientes.euskaltel.es> wrote:
> >From TechTool:
> 
> Machine Type: LC III      and 80M harddisk!!
[...]
> Physical RAM Size: 12,582,912
> Logical RAM Size: 25,165,824

Ah ha!  This is the source of your woe.
Turn off Virtual Memory in Memory control panel.
If you have RAMdoubler installed, make sure that it's not loaded.

Ken