Latitude XT2 Graphics Glitch - Win7 x64

Hi,

My Latitude XT2 has a graphics glitch - I'm running windows 7 x64 and have the latest intel mobile 4 chipset drivers direct from intel. Ocassionally, the screen goes all 'glitchy' and I get lines everywhere where it seems like rows of pixels have been displaced. Always happens when I flip to a multi-touch app, eg. in the touch pack, but generally happens all the time. Forcing a re-draw of screen, eg. moving/scrolling windows fixes things.

Is this likely a hardware issue or a driver problem with win7 x64?

Cheers,
Andy

cross postings:
http://forum.notebookreview.com/showthread.php?p=5343542#post5343542
http://en.community.dell.com/forums/p/19295840/19557405.aspx#19557405
http://communities.intel.com/thread/6871

 

One test you could do is to use another operating system. One easy way to do it is to use the Live CD version of Ubuntu and run it for a while (browsing the web or something).

 

Use the OS that came with the system to rule out beta or driver problems with Win7.

 

It seems to be an issue with the intel GMA4500 graphics chip and many other laptop models with the same chipset have the same problem:
http://forum.notebookreview.com/showpost.php?p=5212064&postcount=900

 

http://communities.intel.com/thread/5566

disable virtualization in the bios to fix the problem