QNXRTP Hangs

It looks strange, but RTP (6.0 January release) hangs every ten
minutes (in average) at my computer. No relations with number of
installed packages (clear, just installed QNXRTP hangs too),
applications loaded (it hangs very pretty without Photon), memory or
processor load… Looks like something is wrong with kernel.
Re-instalation doesn’t help.

It’s the third day I’m trying to solve this problem, and … nothing.
Your suggestions?

Machine: AMD K6-2 500 (no overclocking), 100 Mhz bus, PC-100 64 MB,
Savage 3D (vesa), Ess Allegro (no audio).

wbr, Nik Medved.