spart cus wrote: > Here are the details. > Intel SCB26 > x86 family model II Steppng 1 Genuinie Intel 1130 Mhz > Adaptec AIC 7899 Ultra SCSI 160/m PCI SCSI Card > ZJCS ZJCS2-73GB SCSI Disk (2) > > My setup is only to install centos4.3 for my proxy server. What info should i give ? Have a look at the thread at: https://www.redhat.com/archives/redhat-install-list/2005-November/msg00036.html which points to the bug report at: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=150548 which suggests using the installer boot command line option: 'acpi=off' I haven't seen this problem myself. James Pearson