How do I change my Graphics card settings after installing Mandrake 8.1

[dumas]

When installing Mandrake 8.1 the wrong graphic card/ monitor was configured causing when I start Mandrake it starts up but then screen goes black. How do I change my settings to a div graphic /screen details before madrake has been loaded(because then my screen is already black) And also when selecting the a dif type of graphics/monitor, can I test the setting first before ok'ing. Because I am not sure witch setting will work with my monitor

[LiNuts]

Log in as linux 3, then when your at the console enter your log in name and password. then do 'su' for root privleges, and type (i'm not 100% sure on this, as i have not used Drake for a while) XFree86Setup or XFree86config, this will allow you to reset your card.

To log in to a non X mode, either use your bootdisk and type linux 3 or (I think) hit the tab key when booting from the hard drive.

Cheers
LiNuts

[dumas]

The problem is that even before I can logg on the screen goes blank... I can see the hard disk is working (so linux are loading) I will try and hit tab as you said when linux are loading from the hard disk