Adsense PSA?

[hotrod1]

Well on my forum at explosive-hosting.com I have noticed that on the homepage 90% of the ads that show up are all public service ads. I checked adsense help and they said it might be session urls but I dont think so since it only the front page and all of other pages work well. Could someone tell me if they have this problem and if so if they know a mod or someway to fix it. Thanks

http://www.explosive-hosting.com/forum