I just installed Suse 8.1, and everything was fine, I was in the YasT configuration screen, configuring the videocard and monitor, and when I clicked on test.. the screen when black, and I let it like that for about 4 minutes, and then I reset it.. and when I power it up again.. and when into linux, the creen whent black again... and thats all I got.. I put the boot CD, and I don`t remember wich option I click on, but after looking arround, I could finaly get into KDE... in KDE, I move settings, but when I boot up, I couln`t log in.... again.. and now I can`t get into it...

can someone help me with that??

Hhmm... When you install SuSE Linux 8.1 it is best to skip the screen configuration = do it later! (this will give you plain working linux without GUI).

Login with root. Call sax2. You may switch to init 3 at this point. This will give you x configuration. If the screen becomes blank, pres Ctrl+Alt+Backspace. If sax fails accept any it can offer. Open mc (midnight commander - have you install it?)...

Go to /etc/X11
Open XFree86Config and edit it manually (F4 in mc)
You must have your video card and especially monitor specs handy (e.g. nVidia GeForce 64mb ram and 50-70 Hz horizontal 70-160 kHz vertical refres rate, 1024x768 res, 16bit color, etc. Run 3Ddiag ...

Or...

Fire up xf86config. This will ask you some questions: monitor, keyboard, mouse, video card, etc.

Run SuSEconfig (just in case). Startx :-)
No good? Upgrade your latest video driver ;-)

Have a lot of fun!

I'll bet you got a nVidia 3D accelerator. That particular release of SuSE has an issue with it.

You could also install it in text mode. At boot-up, you're on an option screen. Find that function key.