bakedjake - 7:08 pm on Aug 16, 2004 (gmt 0)

I am hoping it's a spidering problem - because suddenly about 60% of the pages are not showing their Adsense - using the alt advert instead.

Oh, that's interesting.

PD - Did you throw up the 301s once you discovered the problem, or are you saying that you think the 301s are causing the problem?