Great work on Atom 15, been waiting for this for ages. Used this on my graphics card in my Egret 2 and set it to 15Khz and it worked perfectly. Then went to try it on the HD6670 in my Egret 3 and set Atom 15 to 31Khz (I didn't do 15 & 31, just 31Khz) and flashed the HD6670 with the updated bios and got no picture at all. Not even when the PC got to windows. I knew the PC booted ok as I could hear the start up sound, but had no picture. Fortunately after about 4 attempts (Blind), I managed to flash the original bios back to the HD6670 and reboot. All working again, but I wondered what the issue might be?