Just to update, I ran the malware removal tips process that Ciroa recommended, and in addition I uninstalled Opera after making a backup of my preferences/profile information. Then I ran Ccleaner again, ran more malware/adware/spyware cleaners, rebooted, and reinstalled a clean version of Opera. The popups are now gone. There must have been something attached to one of the speed dial favorites, maybe? I've started reapplying items and if one of them triggers another popup problem, I'll remove it right away. So far, so good, though. Thanks for the help. Sorry I didn't get back to the forum sooner. We were out of town on vacation, which made it doubly frustrating because I didn't have the ability to really back up my data effectively. Once we got home and recuperated from vacation (!), I was able to get started and things seem to be running smoothly so far. Fingers crossed, knock on wood, etc.
