f16 preupdate from f14, xfce logout error

[jackson byers]

Joe Zeff responded:

>Just to be clear.  After you select your username, you get prompted for your password.  At >the bottom left of that window, there should be a drop-down box labeled Session, that >defaults to whatever DE you used the last time you logged in this way.  If it says GNOME, >change it to XFCE before typing your password.  Then, it should default to Xfce until and >unless you change it.

>>However  booting now  does not  start X:
>>the system just hangs with a black screen, blinking dash.
>>I can then get X via going to console,Ctrl-alt-F2,
>>which gives me a sign in prompt,
>>  signing in as byers, and running startx.

>If you want to be sure you're using Xfce, try using startxfce4 instead.

Joe, thanks for that  "startxfce4", it completely changed what i was getting
for the graphical display, now clearly in XFCE.
So that is a big advance for me.

I am still stuck on the reboot forcing me to go to console and "startxfce4".
The boot process looks really barren, with a single blue-white bar
with "fedora 16" in blue at far right,
at the bottom of a black screen.

Possibly this problem caused by cruft from the preupgrade,
run from f14, which itself is a preupgrade from f12.

Or, I did something weird during the preupgrade.

Jack