Nvata.sys and Google Video

Well, I always get a bsod halfway when viewing Google Video on Firefox...

The culprit seems to be nvata.sys. I uninstalled the ATA driver and the problem seems to be gone. However, it did not happen until yesterday so I was wondering whether my system has anything wrong?

I have attached my minidump...

Also, I heard the problem was fixed in driver 6.86? Or was it not?
 
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