GDM cant start Gnome

Question

Hello all, I'm having a problem that just started recently with GDM.  When my computer boots, X and GDM start up fine.  Then I log in, and Gnome starts, but it crashes my whole machine. 
The top and bottom bars for gnome show up, but thats all.  Then I cant click on anything, I cant switch back to the terminal (alt+f1) or ssh in from another machine.
If I boot to a console, and use startx to start gnome-session, it starts fine.
I have an ATI X700 card, using the open source 'radeon' driver.  I'm using the Beyond kernel.  I installed from the 0.8 alpha3 CD.  I have an AMD64 processor, but am running the x86 version of Arch.
I did not see any errors in /var/log/Xorg.0.log  The warnings I saw were:
(WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
(WW) RADEON: No matching Device section for instance (BusID PCI:1:0:1) found
Also a bunch of:
(WW) AIGLX: 3D driver claims to not support visual 0x23
I'm kinda stumped on this one, anyone have any ideas?
Thanks!

Answer 1

Ok, my xorg.conf
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" #"CorePointer"
InputDevice "Touchpad" "AlwaysCore"
InputDevice "Keyboard0" "CoreKeyboard"
Option "AIGLX" "true"
EndSection
Section "Files"
RgbPath "/usr/share/X11/rgb"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/misc"
FontPath "/usr/share/fonts/75dpi"
FontPath "/usr/share/fonts/100dpi"
FontPath "/usr/share/fonts/TTF"
FontPath "/usr/share/fonts/Type1"
EndSection
Section "Module"
Load "glx"
Load "extmod"
Load "xtrap"
Load "record"
Load "dbe"
Load "dri"
Load "freetype"
Load "type1"
Load "synaptics"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "pl"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5 6 7"
EndSection
Section "InputDevice"
Identifier "Touchpad"
Driver "synaptics"
Option "Device" "/dev/input/mouse0"
Option "Protocol" "auto-dev"
Option "LeftEdge" "1700"
Option "RightEdge" "5300"
Option "TopEdge" "1700"
Option "BottomEdge" "4200"
Option "FingerLow" "25"
Option "FingerHigh" "30"
Option "MaxTabTime" "180"
Option "MaxTabMove" "220"
Option "VertScrollDelta" "100"
Option "MinSpeed" "0.06"
Option "MaxSpeed" "0.12"
Option "AccelFactor" "0.0010"
Option "SHMConfig" "on"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Device"
### Available Driver options are:-
### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
### [arg]: arg optional
#Option "ShadowFB" # [<bool>]
#Option "DefaultRefresh" # [<bool>]
#Option "ModeSetClearScreen" # [<bool>]
Identifier "Card0"
Driver "radeon"
VendorName "ATI Technologies Inc"
BoardName "RS300M AGP [Radeon Mobility 9100IGP]"
BusID "PCI:1:5:0"
Option "XAANoOffscreenPixmaps" "true"
Option "DRI" "true"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Viewport 0 0
Depth 1
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 4
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 8
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 15
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 16
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
Section "DRI"
Mode 0666
EndSection
Section "Extensions"
Option "Composite" "Enable"
EndSection
And I have also enabled  AWT_TOOLKIT=MToolkit option in my .bashrc (for netbeans).
Thanks for all help!