I have an Asus P5N-E SLI board... The bios was modded with SLIC 2.0 and I'm using it since vista rtm... Now I modded the bios with andy tool with SLIC 2.1 but windows VISTA refuse to activate Im not able to modify the vista key, it gave me an error... I have to do a clean install of windows vista after modding bios for slic 2.1? I use the everest and all the bios tables are patched. I use DELL 2.1 slic.