Guys, we have recently discovered something that can cause this problem. As our FAQ states, you need to set 3rd party SEF components to "Skip" DT Register.. for various reasons. We now have seen that not doing this will cause event and location images to also not load correctly. This was the issue on levine's site. Anyone else having this problem, check this out.
The most popular 3rd party SEF component, which was the one on levine's site, is sh404SEF. This and components like it must be set to skip DT Register... components that auto-create SEF urls.