another adwords overbidding problem

when i start campaigns on existing display-domains some keywords don't start cause another advertiser is already bidding on those.

so i increase my cpc - and normally the ad shows up then. but after a few hours or maybe a day the ad gets deactivated and adwords tells me another advertiser is bidding on that key... so i increase the cpc again - ad is running for a few hours and gets deactivated again....

anyone has the same problem? is there a solution? i'm very sure the advertiser isn't increasing his bids constantly as he can't check all his keys all day long (esp. keys that have a very low click volume...)

your QS can drop or his grow up. Or maybe this person has someone who is checking this. I'm not 100% sure at all. First step check QS. It's dropped?

Hi yes, quite true, everyone want to be on the top of the list, so the guy at other end bidding for similar keyword will certainly keep increasing bid the way you check and increase your adword bid. I think almost everyone using adword is in similar situation, hence I stopped using it. and started other way of generating traffic.There is a huge competition out there either you pay for it or you don't .... so why bother paying. My view though.