ops!! double posted there
was at work using my phone and wasnt sure if it did gone trough first time so i sent it twice.
anyway board as been RMA i have reflashed BIOS and still same thing
1- double wallpaper screen then CMOS error
2- spoke to shop about issue and they offered to flash the bios for me but i just gave up on ROG completelly instead im replacing it with an ASUS SABERTOOTH .
have a look here!
ps. thank you so much for ur help and support
its much appreciated
will rebuild my old socket 775 back untill new board arrives ( sight )