YES !
On the command line safe mode, I just typed pcc and a text mode PCLOS Control Center woke up. Setting up a new monitor was a breeze, and a quick reboot followed. Probably this is in FAQ somewhere, I didn't remember.
Now I'm typing happily on my new shining 23 inch screen showing PCLOS better than ever. Still, I miss my trusty old Hitachi...

THANKS!