Hi thanks very much for the response. I would love to try what you suggest but I have no idea how to go about it. I don't know how to use an efi string or how to make one for my card and I don't know how to set an nv cap. I also wouldn't know how to undo it if it didn't work. So sorry but would you mind explaining how to do all this? I've heard of people using efi strings but I've never seen a detailed description of how to use them or undo them. I've also heard these haven't worked for other people with this card. Would I need to remove all my injectors before using an efi string? There are loads of them now sitting around in my extensions directory. Thanks again for your help, Kesley