Hi Serg008, Just thought you'd be interested in a quick update - I managed to get your First Version 2.10 bios working. It seems (from a process of elimination) that the PCI-e Graphics settings were the cause - Memory share set to AUTO by default so manually set to 1024MB as previously used. Presently have nVidia 6200LE installed. Have ordered an ASUS HD6450 with HDMI support & which is classified PCI-e v2.1 compatible whereas the nVidia is the old PCI-e standard. However, at present it would seem that INSTANT FLASH still locks up the system if a USB flash device is attached when booting - not an immediate problem if Asrock produces Windows based updates in the future as before. I will report further once new card arrives. Thanks again!