My Win Me system has picked up a lot of viruses and I want to reload from the original CDs. I've done this many times in the past with no problem. Now when I try to do it, the system boots straight to Windows -even when the boot CD is in the drive. The CD ROM drive works fine from within windows. I've flashed the BIOS to make sure it is ok. How can I get the system recognize the CD-ROM and boot from there?