cvs update - ssh key problem ?

I'm sure my linux foo is somewhat depleted... what's going on here: [davidt@davidtdesktop cvs-free]$ cvs update Agent admitted failure to sign using the key. Permission denied (publickey). cvs [update aborted]: end of file from server (consult above messages if any) Thought the fas generated cert might have expired, so got a new one replacing the existing ~/.rpmfusion.cert file, no change. Tried relogin/reboot, no change. I've recently updated to F18 from F17. Any hints ?