On my Compaq with AMD Sempron CPU and VIA chipset, Reactos boots the v.0.2.8 LIVE CDROM to the point where it shows the copyright, detects CPU and memory, and reports loading of software modules through "disk.sys". It then hangs and locks the PC so that it must be unplugged to reboot. The same sequence occurs on an HP with AMD Athlon CPU and a VIA chipset. Is this a known problem? What can be done? Ken Martwick