Xorg doesn't start

[Piotr Kubaj]

1. /dev/sysmouse exists.
2. Moused starts.
3. I used to start it automatically at boot with slim, but I run
startx as a user.
4. No, it actually runs, but there's only a black screen, without evn mouse.
5. Xorg -retro works, I can use mouse.
6. I use Openbox.
7. The result of running xinit /usr/local/bin/xterm is the same as
before - blank, black screen without mouse.