I have read every page in this thread and still cant get my modded bios's to work with 8.1...I have 2900pro 1gb/2900xt 512mb in xfire. I have tried ever flash there is with 7.11 (pro to xt custom bioses on both and it works great) When I went to 7.12 or 8.1 I get problems mentioned before...So I try the inf. fix, but that line was already in my 8.1inf... I try that zip file you put on here, didnt work...Ive installed/uninstalled drivers, still works with 7.11, but just cant get it to work with 8.1...Would be really nice to get these working, Im still trying some things myself but any further thoughts on this issue would be awsome

(using quantum force editor, still learning this with the hex editor)