Sony Vaio with Intel Graphics not working

[ilovemyvaio]

Hi
I have a Lenovo Portable LCD ( lt1421) screen which is USB powered. I need to connect this to my Sony Vaio VPCX118LG/B laptop as a secondary screen. I have installed the latest drivers for this hardware on my Vaio, and the secondary screen appears, however the screen is pixelated and you need to move the cursor around for the screen to refresh the screen display. I have attached a photo of the problem.

This is not a fault with the Lenovo Portable LCD ( lt1421) screen , as I have tested this on an Lenovo Laptop and Dell Desktop PC. It works perfectly with all other PCs / laptop.

I have tried adjusting the resolution on the VAIO Intel display card and the refresh rate, however none of the settings resolve this issue.

i believe this is an issue with the Displaylink drivers (7.4.51572.0) and Intel display drivers (Intel Graphics Media Accelerator 500 , version 8.14.10.2024) .

Here is the error from the Windows 7 Application log;


Faulting application name: IgfxExt.exe, version: 8.14.10.2024, time stamp: 0x4b87ae28
Faulting module name: IgfxExt.exe, version: 8.14.10.2024, time stamp: 0x4b87ae28
Exception code: 0xc000000d
Fault offset: 0x000108e8
Faulting process id: 0x1094
Faulting application start time: 0x01cf1e8cca27dae6
Faulting application path: C:\Windows\system32\IgfxExt.exe
Faulting module path: C:\Windows\system32\IgfxExt.exe
Report Id: 0a4ecb2c-8a80-11e3-8b5c-00a0c6000000


please advise solution