Mezza I would also like to know how you used that 'optomized' BIOS file cos atiflash doesn't recognise it when I try.  Maybe because its a .bin file not a .rom?  I followed crytobadger's instructions like when I unvervolted my card and it still won't work

Also thinking about it again I'm not sure you have been using the 'optomised' kernel file... because when I have multiple .cl files int he kernel folder, like you said you did sgminer just picks one for me...I'd be really interested to see whatyou .bin file is once you've been hashing