I know this is old, but I want to resurrect it to mention that both Nvidia and ATI offer integrated graphics solutions with shared memory for laptops these days, both of which provide faster and more robust solutions than Intel's GMA.

A heat gun would be required to remove Intel's chip and solder in its replacement, but if the pinout is the same and the bios (EFI) supports it, it would probably work -but bios support is the big question.
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