emachine EL1200, AMD Athlon 64, Boxer 61 MB DA061L, 08120-1, 48.3V801.011. 2GB RAM, SATA HDD. Originally Win Vista but upgraded to Win 7 home premium 32 bit which worked ok. Problem - at boot up the following happens: verifying DMI pool data...update success, boot from CD, bootmgr is missing, press ctrl+alt+del to restart. inserted win 7 CD, installation progresses to stage where i get error message: no drives were found. click load driver to provide a mass storage driver for installation. any healp well be highly appreciated. many thanks!!!