After installing VL 5.8 SOHO Final all worked out of the box(it rocks on this Celeron 800Mhz 256MB!).
Gslapt - mark all upgrades. Apply. Standard mirror, no changes to excluded packages.
Result: when I reboot the system, no problem in text mode, but when starting KDE it comes just to a black screen With mouse cursor (I can move it). It doesn't look a xorg problem (tried with backup one). Can someone help?