VPN Connection

Hello,
I'm a new MAC User and I'm very happy about that.
I'm trying to configure a VPN connection with certificates.
The problem I'm facing is that I cannot select any certificate during VPN configuration even if Certificates and Public/Private keys are stored on my MAC .
I downloaded these certificates exactly in the same way I did for my previous XP laptop.

I set up two more VPN connections without certificates and they are running perfectly.
I do not undertstand where I'm wrong with certificates.

Thanks

Giovanni

I have lots of problems with VPN on mac. Some places require stately firewall, which the mac client of Cisco does not support. The built in vpn client on the mac does not seem to work at all. When i need to do vpn things, I run XP in vmware. Yeah, i boot a whole other os just because cisco doesn't care enough to update their mac client. big bully companies stink.