video card problem(disable nouvear and enable nvidia)
hi,everyone..i hope you all can help me to solve video card problem..well,just now i have tried to disable default video driver(nouveau) on fedora 12 based on tutorials on webs in order to install nvidia driver!:.(nvidia not yet installed)but after i changed all settings and restart the laptop(to install nvidia),the graphic totally bad and even i cannot login.any advice to enable back my nouveau driver without format my hard drive.?...any command to reset my earlier settings?
P/s=i'm a newbie and please be kind with me