WIN CE Need help with Alert points

Hi, I updated the speedcams of my country (Igo Primo 2.4 in Win CE 6)
But now, all the alert points appears at screen. I just want to see the radars, not the hospital, tolls, schools....).
If I go to "Alert Point Warning/Visual" and select what I want....nothing happens....still all at screen.
Any idea to fix it?

PS: If the only way is deleting "save" folder....how can I keep the favorities adresses? (I don't want to loose them)

Thanks in advance, regards.