[SOLVED] How to revert back to mga3 from mga4?

Hello,
I ran
urpmi --replacefiles --auto-update --auto
after I already had Mageia 3. It was some time later that I realized that the new updates were mga4 packages. Many things stopped working. So, how do I go back to mga3 system?
Mikhail.
I ran
urpmi --replacefiles --auto-update --auto
after I already had Mageia 3. It was some time later that I realized that the new updates were mga4 packages. Many things stopped working. So, how do I go back to mga3 system?
Mikhail.