Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
Those guys made a pretty good engine. Not to most efficient, but the best looking, and it makes sense they would code their own physics instead of paying money to other companies to use proprietary sw with possibly limited customization.
The micro stutters will be very annoying. Maybe consider upgrading down the line to one of the new motherboards with Hydra and grabbing a Fermi card to go along with the 5870.