I signed with Adsense a few weeks ago, published the ads and everything was fine until I discovered today that there are no ads. Looking at the html source of the pages, I see that my Adsense modules are published, but no ads. I tried three different web browsers and even called my friend to check if it's just my IP that's affected. Logged into the http://google.com/adsense, but don't see any errors or messages there regarding me banned, etc. The website is: http://dna4life.com
It looks o.k for me! Sometimes ads don't appear because the system can't find an appropriate topic for your pages.
I am seeing ads...you might want to do some optimization...I am see DNA and blood related ads...I'm not sure if that is the type of ads you want...
It happened with me also, I was kinda frustrated by copying codes more than once in that hour...lol Bytheway it was because of my firewall and once I disabled firewall and the Kaspersky, it worked fine!