Maybe some problems with Flash player. google ads loads asynchronously
Yes, probably. But it only happens to me with this specific ad on this specific site, and when it happens, the whole page becomes unusable and I have to close or reload it.
I've also tried updating my Flash player, but nothing changed.
There's something very weird going on with that ad, and I'm sure it's not your fault, but it keeps happening

Let's just hope they remove it from ad rotation soon...
Ok, I can confirm is a problem caused by a specifc ad, it started happening on other sites too when the same ad is displayed.
I just wish there'd be a way to report this to Google Ads...