FreeBSD 7.0 freezes with nvidia card

[Stephen Montgomery-Smith]

I have a Dell D800 Latitude laptop.  If I use FreeBSD 7.0, and xorg with 
the nv driver, when I exit X, sometimes it simply freezes.  I tried it 
with the vesa driver. and the problem didn't seem to happen, but the 
vesa driver is unable to get the 1680x1050 resolution of my monitor.

I sent a similar message a while back because I thought the ndis driver 
was also involved.  But I have since disabled ndis.  (However when ndis 
is on, the problem is worse.)

Any ideas?

Stephen