just checked to make sure, keyword level is set to the ad group bid, still being overcharged.
was having trouble changing the bid last week, kind of a pain in the butt, i kept updating the bid and then the next day they would be back to the old bid. it was 2 days of this before i realized that not only do you have to update the bids but you also have to scroll all the way to the bottom of the page and click "save", seems a bit redundant to me.
Couple weeks, wow. I have noticed on a few occassions that up to 3 days after I lowered by max CPC I continued to get charged click prices that were higher than my new max CPC but eventually they went down. There is no excuse for two weeks or even 3 days. I'm pretty sure Google changes are effective within 6 minutes.