XFCE 4.2.0 and inability to start X

[Bradeeoh]

I just finished upgrading to XFCE 4.2.0 and after an hour or so I fiddling around, I can't figure out this problem.

Whenever I type "startx" or "startxfce4" directly, I get normal logging of the X.org startup procedure until -
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/usr/bin/startxfce4: X server already running on display :0
Agent pid 5860
which: no dbus-launch in (lists many paths)
(xfce4-session:5863): GLib-CRITICAL **: file gstring.c: line 150 (g_string_chunk_insert): assertion 'chunk != NULL' failed
(xfce4-session:5863): GLib-CRITICAL **: file gstring.c: line 150 (g_string_chunk_insert): assertion 'chunk != NULL' failed
/etc/xdg/xfce4/xinitrc: line 84: 5863 Segmentation fault $xfcesm
Agent pid 5860 killed

waiting for X server to shut down.
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Now first off, there IS NO OTHER INSTANCE of an X server running. Period. I know more than enough about *nix administration to determine if theres an X server running or not.

Secondly, I did some other searching around and found mentions of $DISPLAY being set and confusing startxfce4 into thinking there IS another instance running, but that is not the case - "env" shows no mention of $DISPLAY so unless it's getting set during the startxfce4 script...

Anywho, I'm at a loss for now. Too bad - I'm stoked about checking out the newest version of my fav. WM

Any help is much appreciated. TIA
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[Edaph]

I had a similar problem.

I got Xfce working by creating new file /etc/X11/Sessions/xfce-4.2.0