Our new lab has HP Intel Core 2 Quad systems with DVD/CDRW and SATA. I can provide the model number if needed. They stop on kernel startup when trying to boot the CentOS 5.2 boot CD. It is during ACPI. I have tried linux noprobe and linux pci=noacpi and linux noprobe pci=noacpi. I still cannot get to the first install screen. Fedora 10 Live will not but up either. I am using Fedora 9 from Live and DVD Install to teach a fall class and it works fine. Would CentOS 5.3 possibly work once it is released?