Probleme d'affichage

Bonjour,
voila mon problème :
[URL=https://imageshack.com/][IMG]http://img31.imageshack.us/img31/8141/sanstitreym.png[/IMG][/URL]

[URL=https://imageshack.com/][IMG]http://img193.imageshack.us/img193/8282/50124653.png[/IMG][/URL]


cela arrive soudainement sans aucun message d'erreur et cela me perturbe bcp
merci de m'aider
voici le rapport de dxdiag en ce qui concerne l'affichage:

Display Devices
---------------
Card name: Mobile Intel(R) 965 Express Chipset Family
Manufacturer: Intel Corporation
Chip type: Mobile Intel(R) 965 Express Chipset Family
DAC type: Internal
Device Key: Enum\PCI\VEN_8086&DEV_2A12&SUBSYS_308A103C&REV_0C
Display Memory: 384.0 MB
Current Mode: 1366 x 768 (32 bit) (60Hz)
Monitor: Écran Plug-and-Play
Monitor Max Res: 1600,1200
Driver Name: igxprd32.dll
Driver Version: 6.14.0010.5029 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 1/21/2009 10:43:54, 57344 bytes
WHQL Logo'd: Yes
WHQL Date Stamp: n/a
VDD: n/a
Mini VDD: igxpmp32.sys
Mini VDD Date: 1/21/2009 10:42:56, 6278560 bytes
Device Identifier: {D7B78E66-6952-11CF-2960-8010ADC2CB35}
Vendor ID: 0x8086
Device ID: 0x2A12
SubSys ID: 0x308A103C
Revision ID: 0x000C
Revision ID: 0x000C
Video Accel:
Deinterlace Caps: n/a
Registry: OK
DDraw Status: Enabled
D3D Status: Enabled
AGP Status: Not Available
DDraw Test Result: Not run
D3D7 Test Result: Not run
D3D8 Test Result: Not run
D3D9 Test Result: Not run