7.0 installation problem

[FreeBSD User]

Hello,

I have tried installing FreeBSD 7.0-Current for amd64, and I am having
problems with my mouse and video card.

My hardware is as follows:

Gigabyte p35-ds3r motherboard
Intel Core 2 Quad 2.4GHz (Q6600)
NVidia 8400GS
Microsoft Comfort Optical 3000 mouse
Microsoft Natural Ergonomic Keyboard 4000

Problem 1:
The mouse is not working at all.  When I look at the output of "dmesg",
I see the mouse (ums0), however no movement.  I have gone into sysinstall
and tried every available option under mouse configuration, but I can't get
it to work.

Problem 2:
I cannot get X started.  I get the following errors:

Failed to load module "nv" (module does not exist, 0)
Failed to load module "mouse" (module does not exist, 0)
Failed to load module "kbd" (module does not exist, 0)
No drivers available

Chris