I solved the problem by "undo" immunization on Opera cookies in Spybot-S&D:
Run Spy-bot S&D
Click on "Immunize"
Right click anywhere on the list, and choose "Deselect all"
Check the box next to "Cookies" in Opera 7+ section
Click "undo" on top of the screen
Run Ad-aware, and you should have no more crashes. :angry: