TASTYAPPS All of our products work well on Safari 3.0, since we've had early access to it through our developer membership with Apple and tested it quite thoroughly. The same can not be said for many other plugins, however, and they will sometimes cause ours not to load. I'd recommend that you remove all other plugins, and add them back one at a time until you find the one that's causing this problem.
They can typically be found in the following locations on both your boot volume and in your home folder:
Library/Application Support/SIMBL/Plugins
If you need any help with this, we're here. :)
(Version 1.3)