No matter what I try I can't get Nvidia 3d acceleration to work. Please help!

[hxc at planet.nl]

In case you haven't noticed I am a total FreeBSD n00b ;). How can I 
solve this error message? Thanks in advance!:

Error message
login: NVRM: AGP cannot be enabled on this combination of the AMD CPU 
and OS kernel
NVRM: kernel upgrade recommended.