I've blocked signature graphics for now. The problems over the past couple of days was most likely because one of the ad vendors was hacked, but one report I got said the animated graphics many people are adding to their signature files can create problems. It may be just me, but they are also annoying as hell. BTW - At NO point was there malware on this site. One of the ad vendors was reportedly hacked, and that put all sites with ads served from that vendor on the "suspicious list" and we were blacklisted.