Hi, I got computer with 3500+ Athlon 64 CPU. First I installed FC3 for 32 bit succesfuly and then I decided to install the proper one for this computer - FC4 for 64 bits. I am very surprized by the fact that while the 32bit FC3 installs, the 64bit FC4 as well as 64bit FC3 do not install!!! What happens: I boot from CD1 and it is OK up to the moment when the software packages are to be installed. It freezes (usually during kernel installation) and nothing can be done. I thought of a hardware problem and replaced the CD-driver and the harddisk. Same result. >From the BIOS: IDE Primary Master _NEC DVD_RW ND-35 IDE Third Master HDS722516VLSA80 (this is 160GB ATA150 harddisk) Please help! Best regards, Stefan