Wizard - 9:02 pm on Sep 25, 2006 (gmt 0)

My adsense was doing pretty well until a few days ago. Then, ads in other language than language of the site started to appear! The text "Ads by Google" remains in proper language, the same one as specified with meta tag on each page, but ads itself are in other language, not necessarily known for my visitors! And it resulted in a drastical drop in my CTR and earnings! Has anyone occured such problems?