I just bought TI Home 2009 retail and haven't been able to get it to boot from the CD. I also have the retail versions of TI 8, 10 and 11 and only TI 11 will boot from the CD on my computer and sometimes it won't work either. My computer uses a Intel 865 PERL Socket 478 P4 motherboard with 1 GB PC3200 memory, 3.2 ghz Northwood P4 CPU, and two SATA I ports on the motherboard. My optical drive is a LG GCC-H20L SATA Combo HD-DVD/Blu-ray reader and DVDR+- burner. It has two hard drives, a 120 GB IDE drive split into 2 partitions and a 160 GB drive connected to the second SATA port. I only run TI from the boot CDs I don't install it under Windows.