Screen dimensions go off after a while on Mandrake 10.0 Toshiba Satellite
 

Whenever the screen on my laptop goes off and I press a button to get it back up again the screen dimensions are weird, it's like the screen is stretched but I'm only seeing a part of it.

Pressing Ctr-Alt-F1 and then Alt-F7 fixes it but I'd like to not have to do that.

Hardware: Toshiba Satellite Pro M15-S405
Intel Centrino 1.6
60 GB hardDrive
NVIDIA GeForce4 420 32 MB

Software:
Mandrake 10.0 Community.
Kernel 2.6.3
nvidia driver installed correctly. (I see NVidia splash page when starting X)

What options have you set for your driver? ( in the XF86Config-4 file )

Sorry for my almost month late response (stupid exams)
Anyhow this is my XF86Config-4 file in entirety, hope it helps

# File generated by XFdrake.

# **********************************************************************
# Refer to the XF86Config man page for details about the format of
# this file.
# **********************************************************************

Section "Files"
# Multiple FontPath entries are allowed (they are concatenated together)
# By default, Mandrake 6.0 and later now use a font server independent of
# the X server to render fonts.
FontPath "unix/:-1"
EndSection

Section "ServerFlags"
#DontZap # disable <Crtl><Alt><BS> (server abort)
AllowMouseOpenFail # allows the server to start up even if the mouse doesn't work
#DontZoom # disable <Crtl><Alt><KP_+>/<KP_-> (resolution switching)
EndSection

Section "Module"
Load "dbe" # Double-Buffering Extension
Load "v4l" # Video for Linux
Load "extmod"
Load "type1"
Load "freetype"
Load "glx" # 3D layer
EndSection

Section "InputDevice"
Identifier "Keyboard1"
Driver "Keyboard"
Option "XkbModel" "pc105"
Option "XkbLayout" "en_US"
Option "XkbOptions" ""
EndSection

Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "ExplorerPS/2"
Option "Device" "/dev/mouse"
Option "ZAxisMapping" "6 7"
EndSection

Section "Monitor"
Identifier "monitor1"
VendorName "Generic"
ModelName "Flat Panel 1600x1200"
HorizSync 31.5-90
VertRefresh 60

# Sony Vaio C1(X,XS,VE,VN)?
# 1024x480 @ 85.6 Hz, 48 kHz hsync
ModeLine "1024x480" 65.00 1024 1032 1176 1344 480 488 494 563 -hsync -vsync

# TV fullscreen mode or DVD fullscreen output.
# 768x576 @ 79 Hz, 50 kHz hsync
ModeLine "768x576" 50.00 768 832 846 1000 576 590 595 630

# 768x576 @ 100 Hz, 61.6 kHz hsync
ModeLine "768x576" 63.07 768 800 960 1024 576 578 590 616
EndSection

Section "Device"
Identifier "device1"
VendorName "nVidia Corporation"
BoardName "NVIDIA GeForce4 (generic)"
Driver "nvidia"
Option "DPMS"
EndSection

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

Subsection "Display"
Depth 8
Virtual 1600 1200
EndSubsection

Subsection "Display"
Depth 15
Virtual 1600 1200
EndSubsection

Subsection "Display"
Depth 16
Virtual 1600 1200
EndSubsection

Subsection "Display"
Depth 24
Virtual 1600 1200
EndSubsection
EndSection

Section "ServerLayout"
Identifier "layout1"
InputDevice "Keyboard1" "CoreKeyboard"
InputDevice "Mouse1" "CorePointer"
Screen "screen1"
EndSection