Re: 1.0-8762 reboots my laptop
Do you have AGP compiled in your custom kernel, or are you disabling FreeBSD's AGP driver in /boot/device.hints? I just want to make certain it is really disabled.
Other things to try:
Comment out the FlatPanelProperties option to see if it gets further. Maybe EDID is not correctly evaluating your monitor.
What does pciconf -lv show you for your graphics card? This should at least show if the driver is attaching to your card. Also, check the output of /var/run/dmesg.boot for nvidia0 lines.