When I play some games my Mouse freezes in the game, but works fine without playing games and just using normally on the desktops.

1. Logitech MX500 USB Optical
2. Xandros 3.0 Deluxe w/ 2.6.11-smp kernel

/etc/X11/xorg.conf:

################################################################################
## Automatically generated file by buildxconf
## part of the Xandros hardware detection system
##
## See Also:
## 'man devices-overview' for information about the detection system
## 'man setxconf' a utility for interacting with the detection system
## to modify the X configuration
## 'man xorg.conf' for the format of this file
##
## Warning:
## If this file is edited manually, then buildxconf will no longer
## modify this file. It must be removed to be regenerated.
################################################################################


Section "Files"
ModulePath "/usr/X11R6/lib/modules/nvidia"
ModulePath "/usr/X11R6/lib/modules/altdrivers"
ModulePath "/usr/X11R6/lib/modules"

# Local Fontserver: Disabled by default.
#FontPath "unix/:7100"

# Unscaled Bitmap Fonts:
FontPath "/usr/lib/X11/fonts/75dpi:unscaled"
FontPath "/usr/lib/X11/fonts/100dpi:unscaled"
# Scalable TrueType and CID Fonts (via DeFoMa):
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/CID"
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"

# Scalable TrueType Fonts (via std X path):
FontPath "/usr/lib/X11/fonts/TrueType"

# Scalable Speedo and Type1 Fonts:
FontPath "/usr/lib/X11/fonts/Type1"
FontPath "/usr/lib/X11/fonts/Speedo"

# Scaled Bitmap fonts (ugly) :
FontPath "/usr/lib/X11/fonts/75dpi"
FontPath "/usr/lib/X11/fonts/100dpi"
FontPath "/usr/lib/X11/fonts/misc"
FontPath "/usr/lib/X11/fonts/cyrillic"

# Misc. Fonts:
FontPath "/usr/share/fonts"
EndSection

Section "Module"
Load "ddc"
Load "int10"
Load "xandetect"
Load "dbe"
Load "extmod"
Load "glx"
Load "record"
Load "bitmap"
Load "freetype"
Load "type1"
Load "vbe"
EndSection

Section "InputDevice"
Identifier "Keyboard1"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
EndSection

Section "InputDevice"
Identifier "mouse.usb"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "IMPS/2"
Option "Emulate3Buttons" "YES"
Option "ZAxisMapping" "4 5"
EndSection

Section "DRI"
Mode 0666
EndSection

# pci info: 0x10de, 0x0041, 0x0000, 0x0000
Section "Device"
Identifier "Device1"
Driver "nvidia"
Option "NoRenderAccel"
Option "VideoRam" "124928k"
BusID "PCI:1:0:0"
Screen 0
EndSection

Section "Monitor"
Identifier "Monitor1"
VendorName "DEL"
ModelName "DELL M993s"
HorizSync 30-96
Option "DPMS"
EndSection

# res 1280 1024
Section "Screen"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Depth 4
Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 32
Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubSection
EndSection

Section "ServerFlags"
AllowMouseOpenFail
EndSection

Section "ServerLayout"
Identifier "Default Layout"
Screen "Screen1"
InputDevice "Keyboard1"
InputDevice "mouse.usb"
EndSection