Tina_Kelleher - 6:33 pm on Nov 1, 2010 (gmt 0)
I just wanted to jump in and let you guys know that this issue has been identified and resolved by our tech support team. I just received word that a fix was deployed and they're in the process of verifying that delivery has been restored for those affected.
If you're still having issues, please let me know (post here, in the advertiser forums, [community.microsoftadvertising.com ] or send a tweet to @adCenter) so I can follow up with you directly.
adCenter Community Manager