ATI Radeon 5850 - Can't make any 3D effects work (SOLVED)

Having had so many problems trying to make my dual monitor setup work, I got rid of one monitor (took it downstairs), hoping my simplified setup would have less problems.

Opening windows is spooky fast, but moving windows is jerky, and I can't make any 3D effects work.

I have:

2010 KDE minime
ATI Radeon 5850
Samsung T220 22" connected to one of the two videocard DVI connectors

I'm using the driver the system chose for my card, radeon/fglrx

Trying to run the compiz-icon gets me this:

[yo@localhost ~]$ fusion-icon
* Detected Session: kde
* Searching for installed applications...
* Using the GTK Interface
* Starting Compiz
Traceback (most recent call last):
  File "/usr/bin/fusion-icon", line 58, in <module>
   choose_interface(try_first=options.interface)
  File "/usr/lib/python2.5/site-packages/FusionIcon/interface.py", line 89, in choose_interface
   import_interface(chosen_interface)
  File "/usr/lib/python2.5/site-packages/FusionIcon/interface.py", line 35, in import_interface
   __import__('FusionIcon.interface_%s' %interface)
  File "/usr/lib/python2.5/site-packages/FusionIcon/interface_gtk/__init__.py", line 3, in <module>
   import main
  File "/usr/lib/python2.5/site-packages/FusionIcon/interface_gtk/main.py", line 213, in <module>
   init()
  File "/usr/lib/python2.5/site-packages/FusionIcon/start.py", line 34, in init
   wms.start()
  File "/usr/lib/python2.5/site-packages/FusionIcon/util.py", line 154, in start
   run(self[self.old].killcmd, 'call')
  File "/usr/lib/python2.5/site-packages/FusionIcon/execute.py", line 41, in run
   exitcode = subprocess.call(command, stderr=subprocess.PIPE)
  File "/usr/lib/python2.5/subprocess.py", line 444, in call
   return Popen(*popenargs, **kwargs).wait()
  File "/usr/lib/python2.5/subprocess.py", line 594, in __init__
   errread, errwrite)
  File "/usr/lib/python2.5/subprocess.py", line 1091, in _execute_child
   raise child_exception
OSError: [Errno 2] No such file or directory
[yo@localhost ~]$

I have the option to turn Compiz on at PCC, but that produces no changes whatsoever.

Here's my xorg.conf:

# File generated by XFdrake (rev )

Section "Extensions"
   Option "Composite" "Disable"
EndSection
# **********************************************************************
# Refer to the xorg.conf man page for details about the format of
# this file.
# **********************************************************************

Section "ServerFlags"
   Option "DontZap" "False" # disable <Ctrl><Alt><BS> (server abort)
   #DontZoom # disable <Ctrl><Alt><KP_+>/<KP_-> (resolution switching)
   AllowMouseOpenFail # allows the server to start up even if the mouse does not work
EndSection

Section "Module"
   Load "dbe" # Double-Buffering Extension
   Load "v4l" # Video for Linux
   Load "extmod"
   Load "glx" # 3D layer
   Load "dri" # direct rendering
EndSection

Section "Monitor"
   Identifier "monitor1"
   VendorName "Plug'n Play"
   ModelName "SyncMaster"
   HorizSync 30-81
   VertRefresh 56-75
EndSection

Section "Device"
   Identifier "device1"
   VendorName "ATI Technologies Inc"
   BoardName "ATI Radeon HD 2000 and later (radeon/fglrx)"
   Driver "fglrx"
   Option "DPMS"
EndSection

Section "Screen"
   Identifier "screen1"
   Device "device1"
   Monitor "monitor1"
   DefaultColorDepth 24

   Subsection "Display"
   Depth 8
   Modes "1680x1050" "1600x1000" "1440x900" "1280x800"
   EndSubsection

   Subsection "Display"
   Depth 15
   Modes "1680x1050" "1600x1000" "1440x900" "1280x800"
   EndSubsection

   Subsection "Display"
   Depth 16
   Modes "1680x1050" "1600x1000" "1440x900" "1280x800"
   EndSubsection

   Subsection "Display"
   Depth 24
   Modes "1680x1050" "1600x1000" "1440x900" "1280x800"
   EndSubsection
EndSection

Section "ServerLayout"
   Identifier "layout1"
   Screen "screen1"
EndSection

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