I'm running my NF7-S v2 with BIOS 23. I boot from a 160Gb HD using the serillel adapter on SATA1. I have a 400w power supply. On cold boot, the drive doesn't get detected. I have to leave the machine on for about a minute and then turn it off at the mains and then on again before it is detected. Just hitting Ctrl + Alt + Del (without powering off from the mains) doesn't work. This problem happens nearly everytime (now that it is winter in the UK) but only occasionally in the summer. Any ideas on this please ? Thanks in advance.