Hello, I have a SCR3310 device and am using a GEMALTO ACCESS 64KV2 CAC. I have downloaded and installed CAC-NG (BETA v0.95)/Snow Leopard from http://smartcardservices.macosforge.org/trac/wiki/installers. I can now see my CAC certificates on the CAC Keychain where I could not before this step. That is great, however the 4 certificates I have are all showing that they have invalid issuers. When I show the certificate after evaluating it, it shows that the DoD Interoperability Root Ca 1 and DoD Root Ca 2 cannot be used due to unrecognized critical extensions. This shows up when I go to use Outlook 2011 for Mac and it will not allow me to digitally sign or encrypt my e-mail. I don¹t think it is a CAC issue because when I use the CAC on my old XP PC using Outlook 2003, I am able to digitally sign and encrypt my e-mail there. Can someone provide some insight as to what my issue may be?? Thanks in advance, Charlie Victory