Old lag crying out for help

[Fubar2Niner]

Hi shipmates here is my problem. The old 'Cannot intialize 3D Engine'. I have tried the custom res fix, making my new refresh rates both 61 & 62Hz, but no joy. I've tried a clean os install, a clean SH3 install. All drivers from 266.58 thru to the latest.....So here are my specs:

Mobo - Gigabyte GA-Z97X-SOC Force
RAM - 16GB DDR3 PC3 1600MHz
CPU - Intel i7-4770k @3.50GHz
GPU - 2x Nvidia GTX 580
OS - Win 7 Ultimate 64 bit - UAC Disabled !

SH3 install - Stock 1.4b, starforce free, installed on secondary drive outside Program Files.

I have a couple of thoughts but at the moment they don't make sense as SH3 was running fine up to a couple weeks ago, only thing changed was SH3 Front End. However an OS and SH3 clean install should have fixed any problems there.

I'm at my wits end, I have posted on Guru3d forums but no success there either . Hoping one of you chaps can provide the solution. Any and all help truly appreciated.

Best regards.

Fubar2Niner