Ok. I have used xorgconfig to reconfigure it.
Video problem is gone for the moment. The error about video is gone by using standard VESA as video mode to prevent any problems. I want to sort that out later... since I want that KDE to work!
But now my mouse is not working and creating problems which prevent startx to launch KDE. I have tried in xorgconfig; 1 auto, 2 sysmouse, 3 mousesystems, 5 microsoft, 6 busmouse none of them work.
I'm using a USB optical mouse (windows is identifying it as USB-HID) but can't get it to work.
Again, please advise?