Description of Problem:
On a machine without a mouse plugged in (PS/2 normally), early in a Fairfax
beta1 "boot: expert updates" install (using the anaconda update disk for
writing traceback files), got anaconda crash with traceback.

How Reproducible:
Twice in a row.

Steps to Reproduce:
1. Boot with boot.img and "boot: expert updates".
2. Insert drivers.img disk when prompted.
3. Select English, us, Local CDROM.
4. Insert updates.img disk when prompted.
5. Receive anaconda traceback.

Actual Results:
...
Running anaconda - please wait...
Probing for video card:   S3 Trio64 (generic)
Probing for monitor type: Dell V15X
Probing for mouse type:   None - None
Waiting for X server to start...log located in /tmp/X.log
...X SERVER FAILED X startup failed, falling back to text mode
Traceback (innermost last):
  File "/usr/bin/anaconda", line 540, in ?
    instClass.setKeyboard(id, keymap)
  File "/usr/lib/anaconda/installclass.py", line 195, in setKeyboard
    apply(id.xconfig.setKeyboard, xkb)
AttributeError: 'None' object has no attribute 'setKeyboard'
install exited abnormally

Expected Results:
Not crashing.