Moontrev

Hi all, I've just acquired a computer from my elderly mum in law. as she kept making alterations, our local pic shop set her up as a visitor, with supposedly my wife as the administrator. I've added myself as an administrator, but when I try to load excel from the cd drive, the computer tells me that the administrator will not allow me to do this. how can I access these user settings, so that I can make changes to allow me to load from the cd drive. tia cheers trev