Oberthur ID One 128 v5.5 Dual CAC This URL discusses the issue and has downloads to activate these cards on both Mac and PC. I have tested the Mac download and it works perfectly. http://militarycac.com/oberthur.htm https://militarycac.com/noactivclientwindows7.htm "I don't want to play golf. When I hit a ball, I want someone else to go chase it." - Rogers Hornsby