I noticed a few people complaining about Commission Junction not tracking ads properly and I think I located at least one of the problems. I finally finished configuring the SmartZones to rotate ads on my site (see username for URL), and placed the code on my site. I noticed, however, that the ad often would not load at all. Instead, CJs script would simply return a space instead of a reference to an advertisement. Ads would only load about 1 out of every 20 pages. When the code would return an ad, the image would often be a broken link. What is going on with CJ?