Adobe's done it again. Now not only is PDF dangerous, Flash is. (Again!)
http://www.cio-today.com/story.xhtml?st ... ull_skip=1
Flash is used by a lot of sites to play user-uploaded movies. What a good way for a gold spammer to upload a keylogger for you to infect yourself with.
Get the update here:
http://www.adobe.com/products/flashplayer/