Disabling the script for CL forums
Back in 2008 I discovered that if you're in the forums, and your rolled over a CL link someone had posted, this script freaked out and displayed the preview window as if it was having a seizure. It would display, hide, display, hide etc in a matter of milliseconds and it wouldn't let you click the ad link. To fix this you need to add "http://*.craigslist.org/forums/*" to the Excluded Pages in Greasemonkey when managing this script. Just thought I'd share...