Windows 7 upgrade

[supportnet]

Hi

I just wondered if anyone has upgraded to windows 7 and what problems they found
I have a VGN-AR51M (on the bottom of the Vaio it says PCG-8Z1M)and need to load Windows 7 Ultimate 64 bit version to test software compatibility and wondered if anyone had problems with getting drivers for the Vaio

[squirthead]

Probs include no graphics drivers - Sony say go to manufacturers website. They say go to Sony...

Struggling to play DVD's and BD's.

Don't really want to got back to crappy Vista if I can avoid it.