GLXBadRenderRequest

får detta felmeddelande när jag försöker starta bzflag:
X Error of failed request: GLXBadRenderRequest
Major opcode of failed request: 143 (GLX)
Minor opcode of failed request: 1 (X_GLXRender)
Serial number of failed request: 73
Current serial number in output stream: 74
och detta när jag försöker starta tuxracer:
X Error of failed request: GLXBadRenderRequest
Major opcode of failed request: 143 (GLX)
Minor opcode of failed request: 1 (X_GLXRender)
Serial number of failed request: 21
Current serial number in output stream: 22
och andra snarlika när jag försöker starta andra hårdvaruaccelererade program. det har fungerat utan problem fram tills alldeles nyligen.
får även följande felmeddelanden när jag startar x:
(EE) Failed to load module "pex5" (module does not exist, 0)
(EE) Failed to load module "xie" (module does not exist, 0)
kör debian sid med nvidia-drivisarna.

min XF86config-4:

Section "Files"
FontPath "unix/:7100" # local font server
# if the local font server has problems, we can fall back on these
FontPath "/usr/lib/X11/fonts/misc"
FontPath "/usr/lib/X11/fonts/cyrillic"
FontPath "/usr/lib/X11/fonts/100dpi/:unscaled"
FontPath "/usr/lib/X11/fonts/75dpi/:unscaled"
FontPath "/usr/lib/X11/fonts/Type1"
FontPath "/usr/lib/X11/fonts/Speedo"
FontPath "/usr/lib/X11/fonts/100dpi"
FontPath "/usr/lib/X11/fonts/75dpi"
EndSection

Section "ServerFlags"
EndSection

Section "Module"
Load "ddc"
# Load "GLcore"
Load "dbe"
# Load "dri"
Load "extmod"
Load "glx"
Load "pex5"
Load "record"
Load "xie"
Load "bitmap"
Load "freetype"
Load "speedo"
Load "type1"
Load "vbe"
Load "int10"
EndSection

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "keyboard"
Option "CoreKeyboard"
Option "XkbRules" "xfree86"
Option "XkbModel" "pc104"
Option "XkbLayout" "se"
Option "AltGr" "ModeShift"
EndSection

Section "InputDevice"
Identifier "Generic Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "Emulate3Buttons" "true"
Option "ZAxisMapping" "4 5"
EndSection

#Section "InputDevice"
# Identifier "Generic Mouse"
# Driver "mouse"
# Option "SendCoreEvents" "true"
# Option "Device" "/dev/input/mice"
# Option "Protocol" "ImPS/2"
# Option "Emulate3Buttons" "true"
# Option "ZAxisMapping" "4 5"
#EndSection

Section "Device"
Identifier "Generic Video Card"
Driver "nvidia"
EndSection

Section "Monitor"
Identifier "Generic Monitor"
HorizSync 30-96
VertRefresh 75
Option "DPMS"
EndSection

Section "Screen"
Identifier "Default Screen"
Device "Generic Video Card"
Monitor "Generic Monitor"
DefaultDepth 24
# SubSection "Display"
# Depth 16
# Modes "1400x1050" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
# EndSubSection
SubSection "Display"
Depth 24
Modes "1600x1200" "1280x1024" "1024x768" "800x600"
"640x480"
EndSubSection
# SubSection "Display"
# Depth 32
# Modes "1600x1200" "1400x1050" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
# EndSubSection
EndSection

Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen"
InputDevice "Generic Keyboard"
# InputDevice "Configured Mouse"
InputDevice "Generic Mouse"
EndSection

Section "DRI"
Mode 0666
EndSection

# end of XF86Config