i am 100% sure that this is video card!
there is nothing wrong with your video card physically! the drivers you are using to run widnows 7 is causing this crash! so run windows xp untill hp make windows 7 driver. "this will never happen! hhahaha :("
when you run xp run only software that you really really need
also
speed up xp
go to
control panel
system
advanced tab
performance
click on settings
look at visual effects ucheck some of those box! also add more virtual memory same tab! "look arround!" first box 1000 second box 4000 apply
or hope some one elce could help you!
also go here
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find out if each devices in your device manger is good with windows 7!
http://www.microsoft.com/windows/compatibility/windows-7/en-us/default.aspx