@Buck,
I just experienced another Opera incident, so thought I should note the details here.
The only ad that seemed to be displaying was something that read:
'Tis the season to Connect,
Mobile sidekick 3'
Here is an image:
http://m1.2mdn.net/998766/PID_144224...x600p_1113.jpg
I have no idea if this is the one causing the problem, but hopefully this helps.