Blue Screen error with atikmpag.sys in Windows Vista/7 x64

Hello,

My XPS 435MT system with ATI Radeon HD4850 video card is 3 years old and I can safely say I have never had a problem until now. At first I thought it was a virus, but a complete format and system reinstall haven't fixed the problem. I've tried different versions of drivers (new, old, dell factory) and the issue persists. My screen turns into a checker board so to say and then throws a blue screen with atikmpag.sys error. Sometimes I can work on my machine for days without a problem and sometimes it would come up just after a simple reboot or launching a flash video.

Upon further investigation it was determined the conflict lies between my video card and motherboard. As described by other users with a similar problem here is the cause:

"The problem was that the motherboard (which is like 2-3 years old) had a too old VGA Bios version and the solution is obviously to update it."

(full thread can be found on microsoft forums at http://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/blue-screen-error-with-atikmpagsys-in-windows-7/5f0aebb6-b9b6-4a5d-a622-97c62dbb3d66)

As you can see my situation is exactly the same. I've looked for BIOS drivers for my system and the only update I found was released later in 2009 which still means that my VGA Bios version is almost 3 years old.

My question is if Dell plans on releasing any BIOS updates to fix the issue? Other motherboard manufacturers keep their products up to date and I do believe that 3 years is not enough to stop support. It is ridiculous to think that I should be upgrading my hardware even though there is absolutely nothing wrong with it. I need to know where to go with this and who I should be addressing this to. My warranty has expired but this has nothing to do with it. Thank you for your help in advance.